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Inroducing Isaac

Charles

Captain Weather
#62
6 AM Wednesday update

HURRICANE ISAAC INTERMEDIATE ADVISORY NUMBER 33A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
600 AM CDT WED AUG 29 2012

...ISAAC CONTINUES TO LASH NEW ORLEANS...DANGEROUS STORM SURGE AND
FLOOD THREAT FROM HEAVY RAINS LIKELY TO CONTINUE THROUGH TODAY AND
TONIGHT...


SUMMARY OF 600 AM CDT...1100 UTC...INFORMATION
----------------------------------------------
LOCATION...29.4N 90.5W
ABOUT 20 MI...30 KM SE OF HOUMA LOUISIANA
ABOUT 50 MI...75 KM SSW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...970 MB...28.64 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* EAST OF MORGAN CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING METROPOLITAN NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE
MAUREPAS

A HURRICANE WATCH IS IN EFFECT FOR...
* INTRACOASTAL CITY TO MORGAN CITY LOUISIANA

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE MISSISSIPPI-ALABAMA BORDER TO DESTIN FLORIDA
* MORGAN CITY TO SABINE PASS TEXAS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* EAST OF HIGH ISLAND TEXAS TO JUST WEST OF SABINE PASS

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 600 AM CDT...1100 UTC...THE CENTER OF HURRICANE ISAAC WAS LOCATED
NEAR LATITUDE 29.4 NORTH...LONGITUDE 90.5 WEST. ISAAC HAS BEEN
WOBBLING OVER THE PAST COUPLE OF HOURS...BUT A GENERAL
NORTHWESTWARD MOTION NEAR 6 MPH...9 KM/H...IS EXPECTED THIS
MORNING. A NORTHWESTWARD MOTION IS EXPECTED TO CONTINUE THROUGH
TONIGHT...FOLLOWED BY A TURN TOWARD THE NORTH-NORTHWEST BY THURSDAY
NIGHT OR EARLY FRIDAY. ON THE FORECAST TRACK...THE CENTER OF ISAAC
WILL MOVE OVER LOUISIANA TODAY AND TOMORROW...AND OVER SOUTHERN
ARKANSAS EARLY FRIDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/H...WITH HIGHER
GUSTS. ISAAC IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. WEAKENING IS FORECAST AS ISAAC MOVES OVER
LAND DURING THE NEXT 48 HOURS.

HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 60 MILES...95 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO
175 MILES...280 KM.

DURING THE PAST HOUR...A SUSTAINED WIND OF 54 MPH WITH A GUST TO 70
MPH WAS REPORTED AT LAKEFRONT AIRPORT IN NEW ORLEANS...A SUSTAINED
WIND OF 46 MPH WITH A GUST TO 69 MPH WAS REPORTED AT NEW CANAL
STATION IN NEW ORLEANS...AND A SUSTAINED WIND OF 58 MPH WITH A GUST
TO 73 MPH WAS REPORTED AT SHELL BEACH LOUISIANA.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 970 MB...28.64 INCHES.


HAZARDS AFFECTING LAND
----------------------
STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...6 TO 12 FT
* ALABAMA...3 TO 6 FT
* SOUTH-CENTRAL LOUISIANA...3 TO 6 FT
* FLORIDA PANHANDLE AND APALACHEE BAY...2 TO 4 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA THIS MORNING...AND HURRICANE CONDITIONS WILL CONTINUE TO AFFECT
PORTIONS OF SOUTHEASTERN LOUISIANA IN THE HURRICANE WARNING AREA.

WINDS AFFECTING THE UPPER FLOORS OF HIGH-RISE BUILDINGS WILL BE
SIGNIFICANTLY STRONGER THAN THOSE NEAR GROUND LEVEL. AT ABOUT THE
30TH STORY...WINDS WOULD LIKELY BE ONE SAFFIR-SIMPSON CATEGORY
STRONGER THAN AT THE SURFACE.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF
7 TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 20
INCHES...OVER MUCH OF LOUISIANA...SOUTHERN MISSISSIPPI...AND
SOUTHWEST ALABAMA THROUGH FRIDAY MORNING. THESE RAINS COULD RESULT
IN SIGNIFICANT LOWLAND FLOODING. RAINS ARE EXPECTED TO INCREASE
NORTHWARD INTO ARKANSAS ON THURSDAY WITH AMOUNTS OF 3 TO 6 INCHES
EXPECTED OVER SOUTHERN ARKANSAS BY FRIDAY MORNING.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF
COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY
THROUGH WEDNESDAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...800 AM CDT.
NEXT COMPLETE ADVISORY...1000 AM CDT.

$$
FORECASTER PASCH/ROBERTS/STEWART
 

Charles

Captain Weather
#63
Wednesday at 8 AM update

HURRICANE ISAAC INTERMEDIATE ADVISORY NUMBER 33B
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
800 AM CDT WED AUG 29 2012

...ISAAC LASHING SOUTHEASTERN LOUISIANA WITH STRONG SQUALLS...
DANGEROUS STORM SURGE AND FLOOD THREAT FROM HEAVY RAINS LIKELY TO
CONTINUE THROUGH TODAY AND TONIGHT...


SUMMARY OF 800 AM CDT...1300 UTC...INFORMATION
----------------------------------------------
LOCATION...29.5N 90.5W
ABOUT 15 MI...20 KM ESE OF HOUMA LOUISIANA
ABOUT 40 MI...70 KM SW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...970 MB...28.64 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* EAST OF MORGAN CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING METROPOLITAN NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE
MAUREPAS

A HURRICANE WATCH IS IN EFFECT FOR...
* INTRACOASTAL CITY TO MORGAN CITY LOUISIANA

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE MISSISSIPPI-ALABAMA BORDER TO DESTIN FLORIDA
* MORGAN CITY TO SABINE PASS TEXAS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* EAST OF HIGH ISLAND TEXAS TO JUST WEST OF SABINE PASS

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM CDT...1300 UTC...THE CENTER OF HURRICANE ISAAC WAS LOCATED
BY NOAA DOPPLER WEATHER RADAR NEAR LATITUDE 29.5 NORTH...LONGITUDE
90.5 WEST. ISAAC HAS CONTINUED TO WOBBLE OVER THE PAST FEW HOURS...
BUT A GENERAL NORTHWESTWARD MOTION NEAR 6 MPH...9 KM/H...IS
EXPECTED THIS MORNING. A NORTHWESTWARD MOTION IS EXPECTED TO
CONTINUE THROUGH TONIGHT...FOLLOWED BY A TURN TOWARD THE
NORTH-NORTHWEST BY THURSDAY NIGHT OR EARLY FRIDAY. ON THE FORECAST
TRACK...THE CENTER OF ISAAC WILL MOVE OVER LOUISIANA TODAY AND
TOMORROW...AND OVER SOUTHERN ARKANSAS EARLY FRIDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/H...WITH HIGHER
GUSTS. ISAAC IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. WEAKENING IS FORECAST AS ISAAC CONTINUES TO
MOVE FARTHER INLAND DURING THE NEXT 48 HOURS.

HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 60 MILES...95 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO
175 MILES...280 KM.

DURING THE PAST HOUR...A WIND GUST TO 63 MPH WAS REPORTED AT
LAKEFRONT AIRPORT IN NEW ORLEANS AND A GUST TO 74 MPH WAS REPORTED
AT THE MID LAKE STATION IN LAKE PONTCHARTRAIN.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 970 MB...28.64 INCHES.


HAZARDS AFFECTING LAND
----------------------
STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...6 TO 12 FT
* ALABAMA...3 TO 6 FT
* SOUTH-CENTRAL LOUISIANA...3 TO 6 FT
* FLORIDA PANHANDLE AND APALACHEE BAY...2 TO 4 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA THIS MORNING...AND HURRICANE CONDITIONS WILL CONTINUE TO AFFECT
PORTIONS OF SOUTHEASTERN LOUISIANA IN THE HURRICANE WARNING AREA.

WINDS AFFECTING THE UPPER FLOORS OF HIGH-RISE BUILDINGS WILL BE
SIGNIFICANTLY STRONGER THAN THOSE NEAR GROUND LEVEL. AT ABOUT THE
30TH STORY...WINDS WOULD LIKELY BE ONE SAFFIR-SIMPSON CATEGORY
STRONGER THAN AT THE SURFACE.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF
7 TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 20
INCHES...OVER MUCH OF LOUISIANA...SOUTHERN MISSISSIPPI...AND
SOUTHWEST ALABAMA THROUGH FRIDAY MORNING. THESE RAINS COULD RESULT
IN SIGNIFICANT LOWLAND FLOODING. RAINS ARE EXPECTED TO INCREASE
NORTHWARD INTO ARKANSAS ON THURSDAY WITH AMOUNTS OF 3 TO 6 INCHES
EXPECTED OVER SOUTHERN ARKANSAS BY FRIDAY MORNING.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF
COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY
THROUGH WEDNESDAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1000 AM CDT.

$$
FORECASTER STEWART/BEVEN/ZELINSKY
 

Charles

Captain Weather
#64
10 AM Wednesday Advisory

HURRICANE ISAAC ADVISORY NUMBER 34
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
1000 AM CDT WED AUG 29 2012

...ISAAC DRENCHING SOUTHEASTERN LOUISIANA...DANGEROUS STORM SURGE
AND FLOOD THREAT FROM HEAVY RAINS LIKELY TO CONTINUE THROUGH
TONIGHT...


SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...29.6N 90.7W
ABOUT 0 MI...0 KM N OF HOUMA LOUISIANA
ABOUT 45 MI...75 KM SW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...972 MB...28.70 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED EAST OF THE
ALABAMA-FLORIDA BORDER.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* EAST OF MORGAN CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING METROPOLITAN NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE
MAUREPAS

A HURRICANE WATCH IS IN EFFECT FOR...
* INTRACOASTAL CITY TO MORGAN CITY LOUISIANA

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* EAST OF THE MISSISSIPPI-ALABAMA BORDER TO THE ALABAMA-FLORIDA
BORDER
* MORGAN CITY TO SABINE PASS TEXAS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* EAST OF HIGH ISLAND TEXAS TO JUST WEST OF SABINE PASS

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1000 AM CDT...1500 UTC...THE CENTER OF HURRICANE ISAAC WAS
LOCATED BY NOAA DOPPLER WEATHER RADAR NEAR LATITUDE 29.6 NORTH...
LONGITUDE 90.7 WEST...OR VERY NEAR HOUMA LOUISIANA. ISAAC IS MOVING
TOWARD THE NORTHWEST NEAR 6 MPH...9 KM/H. THIS GENERAL MOTION IS
EXPECTED TO CONTINUE THROUGH TONIGHT...FOLLOWED BY A TURN TOWARD
THE NORTH-NORTHWEST BY THURSDAY NIGHT OR EARLY FRIDAY. ON THE
FORECAST TRACK...THE CENTER OF ISAAC WILL MOVE FARTHER INLAND OVER
LOUISIANA TODAY AND TOMORROW...AND OVER SOUTHERN ARKANSAS BY EARLY
FRIDAY.

MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 75 MPH...120 KM/H...
WITH HIGHER GUSTS. ISAAC IS A CATEGORY ONE HURRICANE ON THE
SAFFIR-SIMPSON HURRICANE WIND SCALE. GRADUAL WEAKENING IS FORECAST
DURING THE NEXT 48 HOURS AS ISAAC CONTINUES MOVING FARTHER INLAND...
AND ISAAC IS EXPECTED TO WEAKEN TO A TROPICAL STORM LATER TODAY.

HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.

A GUST TO 74 MPH WAS RECENTLY REPORTED AT THE MID LAKE STATION IN
LAKE PONTCHARTRAIN...AND A WIND GUST TO 63 MPH WAS REPORTED AT
NEW ORLEANS INTERNATIONAL AIRPORT.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS IS 972 MB...28.70 INCHES.


HAZARDS AFFECTING LAND
----------------------
STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...6 TO 12 FT
* ALABAMA...3 TO 6 FT
* SOUTH-CENTRAL LOUISIANA...3 TO 6 FT
* FLORIDA PANHANDLE AND APALACHEE BAY...2 TO 4 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

STORM SURGE VALUES OF NEAR 8 FEET HAVE RECENTLY BEEN REPORTED AT
SHELL BEACH LOUISIANA AND WAVELAND MISSISSIPPI.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA TODAY...AND HURRICANE CONDITIONS WILL CONTINUE TO AFFECT
PORTIONS OF SOUTHEASTERN LOUISIANA AND MISSISSIPPI IN THE HURRICANE
WARNING AREA INTO THIS AFTERNOON.

WINDS AFFECTING THE UPPER FLOORS OF HIGH-RISE BUILDINGS WILL BE
SIGNIFICANTLY STRONGER THAN THOSE NEAR GROUND LEVEL. AT ABOUT THE
30TH STORY...WINDS WOULD LIKELY BE ONE SAFFIR-SIMPSON CATEGORY
STRONGER THAN AT THE SURFACE.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF
7 TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 20
INCHES...OVER MUCH OF LOUISIANA...SOUTHERN MISSISSIPPI...AND
SOUTHWEST ALABAMA THROUGH FRIDAY MORNING. THESE RAINS COULD RESULT
IN SIGNIFICANT LOWLAND FLOODING. RAINS ARE EXPECTED TO INCREASE
NORTHWARD INTO ARKANSAS ON THURSDAY...WITH AMOUNTS OF 3 TO 6 INCHES
EXPECTED OVER SOUTHERN ARKANSAS BY FRIDAY MORNING.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF
COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY
THROUGH THURSDAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORIES...1200 PM CDT AND 200 PM CDT.
NEXT COMPLETE ADVISORY...400 PM CDT.

$$
FORECASTER STEWART
 

Charles

Captain Weather
#66
12 noon Wednesday update

HURRICANE ISAAC INTERMEDIATE ADVISORY NUMBER 34A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
1200 PM CDT WED AUG 29 2012

...ISAAC SOAKING SOUTHEASTERN LOUISIANA AND SOUTHERN MISSISSIPPI
WITH HEAVY RAIN...DANGEROUS COASTAL STORM SURGE AND INLAND FLOOD
THREAT EXPECTED THROUGH TONIGHT...


SUMMARY OF 1200 PM CDT...1700 UTC...INFORMATION
-----------------------------------------------
LOCATION...29.7N 90.8W
ABOUT 10 MI...15 KM NW OF HOUMA LOUISIANA
ABOUT 45 MI...75 KM WSW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...973 MB...28.73 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* EAST OF MORGAN CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING METROPOLITAN NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE
MAUREPAS

A HURRICANE WATCH IS IN EFFECT FOR...
* INTRACOASTAL CITY TO MORGAN CITY LOUISIANA

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* EAST OF THE MISSISSIPPI-ALABAMA BORDER TO THE ALABAMA-FLORIDA
BORDER
* MORGAN CITY TO SABINE PASS TEXAS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* EAST OF HIGH ISLAND TEXAS TO JUST WEST OF SABINE PASS

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1200 PM CDT...1700 UTC...THE CENTER OF HURRICANE ISAAC WAS
LOCATED BY NOAA DOPPLER WEATHER RADAR NEAR LATITUDE 29.7 NORTH...
LONGITUDE 90.8 WEST. ISAAC IS MOVING TOWARD THE NORTHWEST NEAR 6
MPH...9 KM/H. THIS GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH
TONIGHT...FOLLOWED BY A TURN TOWARD THE NORTH-NORTHWEST BY THURSDAY
NIGHT OR EARLY FRIDAY. ON THE FORECAST TRACK...THE CENTER OF ISAAC
WILL MOVE FARTHER INLAND OVER LOUISIANA TODAY AND TOMORROW...AND
MOVE OVER SOUTHERN ARKANSAS BY EARLY FRIDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/H...WITH HIGHER
GUSTS. ISAAC IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. GRADUAL WEAKENING IS FORECAST DURING THE NEXT
48 HOURS AS ISAAC CONTINUES MOVING FARTHER INLAND...AND ISAAC IS
EXPECTED TO WEAKEN TO A TROPICAL STORM LATER TODAY.

HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.

A GUST TO 71 MPH WAS RECENTLY REPORTED AT PILOT STATION NEAR THE
MOUTH OF THE MISSISSIPPI RIVER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS IS 973 MB...28.73 INCHES.


HAZARDS AFFECTING LAND
----------------------
STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...6 TO 12 FT
* ALABAMA...3 TO 6 FT
* SOUTH-CENTRAL LOUISIANA...3 TO 6 FT
* FLORIDA PANHANDLE AND APALACHEE BAY...2 TO 4 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

STORM SURGE VALUES OF ABOUT 8 FEET HAVE RECENTLY BEEN REPORTED AT
SHELL BEACH LOUISIANA AND WAVELAND MISSISSIPPI.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA TODAY...AND HURRICANE CONDITIONS WILL CONTINUE TO AFFECT
PORTIONS OF SOUTHEASTERN LOUISIANA AND MISSISSIPPI IN THE HURRICANE
WARNING AREA INTO THIS AFTERNOON.

WINDS AFFECTING THE UPPER FLOORS OF HIGH-RISE BUILDINGS WILL BE
SIGNIFICANTLY STRONGER THAN THOSE NEAR GROUND LEVEL. AT ABOUT THE
30TH STORY...WINDS WOULD LIKELY BE ONE SAFFIR-SIMPSON CATEGORY
STRONGER THAN AT THE SURFACE.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF
7 TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 20
INCHES...OVER MUCH OF LOUISIANA...SOUTHERN MISSISSIPPI...AND
SOUTHWEST ALABAMA THROUGH FRIDAY MORNING. THESE RAINS COULD RESULT
IN SIGNIFICANT LOWLAND FLOODING. RAINS ARE EXPECTED TO INCREASE
NORTHWARD INTO ARKANSAS ON THURSDAY...WITH AMOUNTS OF 3 TO 6 INCHES
EXPECTED OVER SOUTHERN ARKANSAS BY FRIDAY MORNING.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF
COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY
THROUGH THURSDAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...200 PM CDT.
NEXT COMPLETE ADVISORY...400 PM CDT.

$$
FORECASTER STEWART/ZELINSKY
 

Charles

Captain Weather
#67
WEDNESDAY AT 2 PM

TROPICAL STORM ISAAC INTERMEDIATE ADVISORY NUMBER 34B
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
200 PM CDT WED AUG 29 2012

...ISAAC WEAKENS TO A TROPICAL STORM...LIFE-THREATENING HAZARDS FROM
STORM SURGE AND INLAND FLOODING ARE STILL OCCURRING...


SUMMARY OF 200 PM CDT...1900 UTC...INFORMATION
----------------------------------------------
LOCATION...29.8N 90.9W
ABOUT 50 MI...80 KM WSW OF NEW ORLEANS LOUISIANA
ABOUT 55 MI...90 KM SSE OF BATON ROUGE LOUISIANA
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...974 MB...28.76 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

THE HURRICANE WARNING AND THE HURRICANE WATCH HAVE BEEN
DISCONTINUED...AND THE TROPICAL STORM WARNING HAS BEEN ADJUSTED.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* CAMERON LOUISIANA TO THE ALABAMA-FLORIDA BORDER

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 PM CDT...1900 UTC...THE CENTER OF TROPICAL STORM ISAAC WAS
LOCATED BY NOAA DOPPLER WEATHER RADAR NEAR LATITUDE 29.8 NORTH...
LONGITUDE 90.9 WEST. ISAAC IS MOVING TOWARD THE NORTHWEST NEAR 6
MPH...9 KM/H. THIS GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH
TONIGHT...FOLLOWED BY A TURN TOWARD THE NORTH-NORTHWEST BY THURSDAY
NIGHT OR EARLY FRIDAY. ON THE FORECAST TRACK...THE CENTER OF ISAAC
WILL MOVE FARTHER INLAND OVER LOUISIANA TODAY AND TOMORROW...AND
MOVE OVER SOUTHERN ARKANSAS BY EARLY FRIDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 70 MPH...110 KM/H...WITH HIGHER
GUSTS. GRADUAL WEAKENING IS FORECAST DURING THE NEXT 48 HOURS AS
ISAAC CONTINUES TO MOVE FARTHER INLAND.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM
FROM THE CENTER.

A GUST TO 70 MPH WAS RECENTLY REPORTED AT GULFPORT MISSISSIPPI.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS IS 974 MB...28.76 INCHES.


HAZARDS AFFECTING LAND
----------------------
EVEN THOUGH ISAAC IS NO LONGER A HURRICANE...LIFE-THREATENING
HAZARDS FROM STORM SURGE AND INLAND FLOODING ARE STILL OCCURRING.

STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...6 TO 12 FT
* ALABAMA...3 TO 6 FT
* SOUTH-CENTRAL LOUISIANA...3 TO 6 FT
* FLORIDA PANHANDLE AND APALACHEE BAY...2 TO 4 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

STORM SURGE VALUES OF ABOUT 8 FEET HAVE RECENTLY BEEN REPORTED AT
WAVELAND MISSISSIPPI.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA TODAY.

WINDS AFFECTING THE UPPER FLOORS OF HIGH-RISE BUILDINGS WILL BE
SIGNIFICANTLY STRONGER THAN THOSE NEAR GROUND LEVEL. AT ABOUT THE
30TH STORY...WINDS WOULD LIKELY BE ONE SAFFIR-SIMPSON CATEGORY
STRONGER THAN AT THE SURFACE.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF
7 TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 20
INCHES...OVER MUCH OF LOUISIANA...SOUTHERN MISSISSIPPI...AND
SOUTHWEST ALABAMA THROUGH FRIDAY MORNING. THESE RAINS COULD RESULT
IN SIGNIFICANT LOWLAND FLOODING. RAINS ARE EXPECTED TO INCREASE
NORTHWARD INTO ARKANSAS ON THURSDAY...WITH AMOUNTS OF 3 TO 6 INCHES
EXPECTED OVER SOUTHERN ARKANSAS BY FRIDAY MORNING.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF
COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY
THROUGH THURSDAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...400 PM CDT.

$$
FORECASTER STEWART
 

Krazy Kruizers

Holland America Specialist
#68
Thank you Charles

I was watching the World News a few minutes ago. Saw the homes in one of the Parishes -- water right up to the roofs -- people being rescued.

So sad.
 

Charles

Captain Weather
#69
Wednesday at 7 PM update

TROPICAL STORM ISAAC INTERMEDIATE ADVISORY NUMBER 35A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
700 PM CDT WED AUG 29 2012

...SLOW-MOVING ISAAC DUMPING HEAVY RAINS AND STILL PRODUCING
A SIGNIFICANT STORM SURGE...


SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...30.1N 91.1W
ABOUT 30 MI...50 KM S OF BATON ROUGE LOUISIANA
ABOUT 60 MI...95 KM W OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...60 MPH...90 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...977 MB...28.85 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

THE TROPICAL STORM WARNING EAST OF THE MISSISSIPPI-ALABAMA BORDER
HAS BEEN DISCONTINUED.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* CAMERON LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY
YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 700 PM CDT...0000 UTC...THE CENTER OF TROPICAL STORM ISAAC WAS
LOCATED BY NOAA DOPPLER WEATHER RADAR NEAR LATITUDE 30.1 NORTH...
LONGITUDE 91.1 WEST. ISAAC IS MOVING TOWARD THE NORTHWEST NEAR 5
MPH...7 KM/H. THIS GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH
TONIGHT...FOLLOWED BY A TURN TOWARD THE NORTH-NORTHWEST BY THURSDAY
NIGHT OR EARLY FRIDAY. ON THE FORECAST TRACK...THE CENTER OF ISAAC
WILL MOVE FARTHER INLAND OVER LOUISIANA TONIGHT AND TOMORROW...AND
MOVE OVER SOUTHERN ARKANSAS BY EARLY FRIDAY.

MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 60 MPH...90 KM/H...
WITH HIGHER GUSTS. THE STRONGEST WINDS ARE PRIMARILY OCCURRING OVER
WATER OR NEAR THE COAST. STEADY WEAKENING IS EXPECTED DURING THE
NEXT 48 HOURS AS ISAAC CONTINUES TO MOVE FARTHER INLAND...AND ISAAC
IS FORECAST TO BECOME A TROPICAL DEPRESSION BY THURSDAY NIGHT.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM
FROM THE CENTER. SUSTAINED WINDS OF 46 MPH WITH A GUST TO 55 MPH
WAS RECENTLY REPORTED NEAR MANDEVILLE LOUISIANA. A WIND GUST TO 67
MPH WAS REPORTED AT GULFPORT MISSISSIPPI DURING THE PAST COUPLE OF
HOURS.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS IS 977 MB...28.85 INCHES.


HAZARDS AFFECTING LAND
----------------------
EVEN THOUGH ISAAC IS NO LONGER A HURRICANE...LIFE-THREATENING
HAZARDS FROM STORM SURGE AND INLAND FLOODING ARE STILL OCCURRING.

STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...6 TO 12 FT
* SOUTH-CENTRAL LOUISIANA...3 TO 6 FT
* ALABAMA...2 TO 4 FT
* FLORIDA PANHANDLE AND APALACHEE BAY...1 TO 2 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

A STORM SURGE OF NEARLY 7 FEET IS STILL OCCURRING AT WAVELAND
MISSISSIPPI.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA THROUGH TONIGHT.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF
7 TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 25
INCHES...OVER MUCH OF LOUISIANA...SOUTHERN AND CENTRAL
MISSISSIPPI...SOUTHWEST ALABAMA AND SOUTHERN AND CENTRAL
ARKANSAS THROUGH FRIDAY. THESE RAINS COULD RESULT IN SIGNIFICANT
LOWLAND FLOODING.

AN UNOFFICIAL RAINFALL TOTAL OF 18.35 INCHES HAS BEEN REPORTED IN
GRETNA LOUISIANA...LOCATED IN METROPOLITAN NEW ORLEANS.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF
COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY
THROUGH THURSDAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1000 PM CDT.

$$
FORECASTER BROWN/KIMBERLAIN
 

Charles

Captain Weather
#70
Thursday morning 4 AM advisory



TROPICAL STORM ISAAC ADVISORY NUMBER 37
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
400 AM CDT THU AUG 30 2012

...ISAAC CONTINUES TO WEAKEN SLOWLY OVER LAND BUT STILL PRODUCING
HEAVY RAINS AND SEVERE WEATHER...WATER LEVELS REMAIN HIGH ALONG THE
NORTHERN GULF COAST...


SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...30.9N 91.6W
ABOUT 55 MI...85 KM SE OF ALEXANDRIA LOUISIANA
ABOUT 110 MI...175 KM NW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...NW OR 325 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...983 MB...29.03 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

THE TROPICAL STORM WARNING WEST OF INTRACOASTAL CITY LOUISIANA TO
CAMERON IS DISCONTINUED.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* INTRACOASTAL CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING LAKE PONTCHARTRAIN AND LAKE MAUREPAS

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 400 AM CDT...0900 UTC...THE CENTER OF TROPICAL STORM ISAAC WAS
LOCATED NEAR LATITUDE 30.9 NORTH...LONGITUDE 91.6 WEST. ISAAC IS
MOVING TOWARD THE NORTHWEST NEAR 8 MPH...13 KM/H. A TURN TOWARD THE
NORTH-NORTHWEST IS EXPECTED LATER TODAY...FOLLOWED BY A TURN TOWARD
THE NORTH ON FRIDAY. ON THE FORECAST TRACK...THE CENTER OF ISAAC
WILL CONTINUE TO MOVE OVER LOUISIANA TODAY...OVER ARKANSAS ON
FRIDAY...AND OVER SOUTHERN MISSOURI FRIDAY NIGHT.

MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 45 MPH...75 KM/H...
WITH HIGHER GUSTS. THE STRONGEST WINDS ARE PRIMARILY OCCURRING
OVER WATER OR NEAR THE COAST. STEADY WEAKENING IS EXPECTED DURING
THE NEXT 48 HOURS AS ISAAC CONTINUES TO MOVE OVER LAND. ISAAC IS
FORECAST TO BECOME A TROPICAL DEPRESSION BY TONIGHT.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM
FROM THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS IS 983 MB...29.03 INCHES.


HAZARDS AFFECTING LAND
----------------------
EVEN THOUGH ISAAC IS NO LONGER A HURRICANE...LIFE-THREATENING
HAZARDS FROM STORM SURGE...INLAND FLOODING...AND TORNADOES ARE STILL
OCCURRING.

STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...5 TO 10 FT
* ALABAMA...2 TO 4 FT
* SOUTH-CENTRAL LOUISIANA...1 TO 3 FT
* FLORIDA PANHANDLE...1 TO 2 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

BASED ON AN OBSERVATION FROM A NATIONAL OCEAN SERVICE TIDE GAUGE AT
NEW CANAL STATION LOUISIANA...A STORM SURGE OF 6.3 FEET IS STILL
OCCURRING ON THE SOUTHERN SHORE OF LAKE PONTCHARTRAIN.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA THROUGH THIS MORNING.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF 7
TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 25
INCHES...OVER MUCH OF LOUISIANA...MISSISSIPPI...SOUTHWEST ALABAMA
AND ARKANSAS THROUGH FRIDAY. THESE RAINS COULD RESULT IN
SIGNIFICANT LOWLAND FLOODING.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF
COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY
THROUGH TODAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...700 AM CDT.
NEXT COMPLETE ADVISORY...1000 AM CDT.

$$
FORECASTER PASCH

 

Charles

Captain Weather
#72
Another sad day for southern LA, Yonne

Wednesday 7 AM update

TROPICAL STORM ISAAC INTERMEDIATE ADVISORY NUMBER 37A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
700 AM CDT THU AUG 30 2012

...ISAAC CONTINUES TO MOVE SLOWLY NORTHWESTWARD OVER CENTRAL
LOUISIANA...STILL PRODUCING HEAVY RAINS...SEVERE WEATHER...AND HIGH
WATER LEVELS ALONG THE NORTHERN GULF COAST...


SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...31.1N 91.8W
ABOUT 35 MI...60 KM SE OF ALEXANDRIA LOUISIANA
ABOUT 125 MI...205 KM NW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...NW OR 325 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...985 MB...29.09 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* INTRACOASTAL CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING LAKE PONTCHARTRAIN AND LAKE MAUREPAS

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 700 AM CDT...1200 UTC...THE CENTER OF TROPICAL STORM ISAAC WAS
LOCATED NEAR LATITUDE 31.1 NORTH...LONGITUDE 91.8 WEST. ISAAC IS
MOVING TOWARD THE NORTHWEST NEAR 8 MPH...13 KM/H. A TURN TOWARD THE
NORTH-NORTHWEST IS EXPECTED LATER TODAY...FOLLOWED BY A TURN TOWARD
THE NORTH ON FRIDAY. ON THE FORECAST TRACK...THE CENTER OF ISAAC
WILL CONTINUE TO MOVE OVER LOUISIANA TODAY...OVER ARKANSAS ON
FRIDAY...AND OVER SOUTHERN MISSOURI FRIDAY NIGHT.

MAXIMUM SUSTAINED WINDS ARE NEAR 45 MPH...75 KM/H... WITH HIGHER
GUSTS. THE STRONGEST WINDS ARE PRIMARILY OCCURRING OVER WATER OR
NEAR THE COAST. STEADY WEAKENING IS EXPECTED DURING THE NEXT 48
HOURS AS ISAAC CONTINUES TO MOVE OVER LAND. ISAAC IS FORECAST TO
BECOME A TROPICAL DEPRESSION BY TONIGHT.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280
KM...MAINLY EAST THROUGH SOUTH OF THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS IS 985 MB...29.09 INCHES.


HAZARDS AFFECTING LAND
----------------------
EVEN THOUGH ISAAC IS NO LONGER A HURRICANE...LIFE-THREATENING
HAZARDS FROM STORM SURGE...INLAND FLOODING...AND TORNADOES ARE STILL
OCCURRING.

STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...5 TO 10 FT
* ALABAMA...2 TO 4 FT
* SOUTH-CENTRAL LOUISIANA...1 TO 3 FT
* FLORIDA PANHANDLE...1 TO 2 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

BASED ON OBSERVATIONS FROM NATIONAL OCEAN SERVICE TIDE GAUGES...AT
NEW CANAL STATION LOUISIANA...A STORM SURGE OF NEAR 6 FEET IS STILL
OCCURRING ON THE SOUTHERN SHORE OF LAKE PONTCHARTRAIN...AND A STORM
SURGE VALUE OF NEAR 5 FEET IS OCCURRING AT WAVELAND MISSISSIPPI.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA THROUGH THIS MORNING.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF
7 TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 25
INCHES...OVER MUCH OF LOUISIANA...MISSISSIPPI...SOUTHWEST ALABAMA
AND ARKANSAS THROUGH FRIDAY. THESE RAINS COULD RESULT IN
SIGNIFICANT LOWLAND FLOODING.

AN UNOFFICIAL REPORT OF A RAINFALL TOTAL OF 23.31 INCHES HAS BEEN
RECEIVED FROM GRETNA LOUISIANA.

TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF
COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY
THROUGH TODAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1000 AM CDT.

$$
FORECASTER STEWART/BLAKE
 

Charles

Captain Weather
#73
Thursday at 10 AM advisory


TROPICAL STORM ISAAC ADVISORY NUMBER 38
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
1000 AM CDT THU AUG 30 2012

...ISAAC SLOWLY WEAKENING OVER CENTRAL LOUISIANA BUT STILL
PRODUCING HEAVY RAINS...SEVERE WEATHER...AND HIGH WATER LEVELS
ALONG THE NORTHERN GULF COAST...


SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...31.7N 92.1W
ABOUT 50 MI...80 KM S OF MONROE LOUISIANA
ABOUT 165 MI...270 KM NW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...NNW OR 330 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...987 MB...29.15 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED WEST OF MORGAN CITY
LOUISIANA.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* MORGAN CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING LAKE PONTCHARTRAIN AND LAKE MAUREPAS

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1000 AM CDT...1500 UTC...THE CENTER OF TROPICAL STORM ISAAC WAS
LOCATED NEAR LATITUDE 31.7 NORTH...LONGITUDE 92.1 WEST. ISAAC IS
MOVING TOWARD THE NORTH-NORTHWEST NEAR 9 MPH...15 KM/H. A TURN
TOWARD THE NORTH IS EXPECTED BY FRIDAY. ON THE FORECAST TRACK...THE
CENTER OF ISAAC WILL CONTINUE TO MOVE OVER LOUISIANA TODAY...OVER
ARKANSAS ON FRIDAY...AND OVER SOUTHERN MISSOURI FRIDAY NIGHT.

MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 40 MPH...65
KM/H...WITH HIGHER GUSTS. FURTHER WEAKENING IS FORECAST DURING THE
NEXT 48 HOURS AS THE STORM CONTINUES TO MOVE OVER LAND...AND ISAAC
IS EXPECTED TO BECOME A TROPICAL DEPRESSION BY TONIGHT.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 195 MILES...315
KM...MAINLY TO THE SOUTHEAST OF THE CENTER OVER WATER AND ALONG THE
COASTS OF MISSISSIPPI AND SOUTHEASTERN LOUISIANA.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS 987 MB...29.15 INCHES.


HAZARDS AFFECTING LAND
----------------------
EVEN THOUGH ISAAC IS NO LONGER A HURRICANE...LIFE-THREATENING
HAZARDS FROM STORM SURGE...INLAND FLOODING...AND TORNADOES ARE STILL
OCCURRING.

STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF
THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...4 TO 8 FT
* ALABAMA...2 TO 4 FT
* SOUTH-CENTRAL LOUISIANA...1 TO 3 FT
* FLORIDA PANHANDLE...1 TO 2 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

BASED ON OBSERVATIONS FROM NATIONAL OCEAN SERVICE TIDE GAUGES...AT
NEW CANAL STATION LOUISIANA...A STORM SURGE OF NEAR 6 FEET IS STILL
OCCURRING ON THE SOUTHERN SHORE OF LAKE PONTCHARTRAIN...AND A STORM
SURGE VALUE OF NEAR 5 FEET IS OCCURRING AT WAVELAND MISSISSIPPI.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA THROUGH THIS MORNING.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 7 TO 14 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 25 INCHES
POSSIBLE...OVER NORTHERN AND EASTERN LOUISIANA....MUCH OF
MISSISSIPPI...SOUTHWESTERN ALABAMA...ARKANSAS AND INTO SOUTHERN
MISSOURI THROUGH FRIDAY. THESE RAINS COULD RESULT IN SIGNIFICANT
LOWLAND FLOODING. THE HEAVY RAIN POTENTIAL WILL BE SPREADING
EASTWARD THIS WEEKEND INTO PORTIONS OF THE MID-WEST AND OHIO VALLEY
REGIONS.

TORNADOES...TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF COAST
REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY THROUGH
TODAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...100 PM CDT.
NEXT COMPLETE ADVISORY...400 PM CDT.

$$
FORECASTER STEWART
 

Charles

Captain Weather
#74
1:00 PM Thursday update

TROPICAL STORM ISAAC INTERMEDIATE ADVISORY NUMBER 38A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
100 PM CDT THU AUG 30 2012

...SLOW-MOVING ISAAC DRENCHING SOUTHEASTERN LOUISIANA AND
MISSISSIPPI WITH HEAVY RAINFALL...
...SIGNIFICANT STORM SURGE CONTINUES...


SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...32.2N 92.3W
ABOUT 25 MI...45 KM SW OF MONROE LOUISIANA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...NNW OR 330 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...992 MB...29.29 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* MORGAN CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING LAKE PONTCHARTRAIN AND LAKE MAUREPAS

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 100 PM CDT...1800 UTC...THE CENTER OF TROPICAL STORM ISAAC WAS
LOCATED NEAR LATITUDE 32.2 NORTH...LONGITUDE 92.3 WEST. ISAAC IS
MOVING TOWARD THE NORTH-NORTHWEST NEAR 9 MPH...15 KM/H. A TURN
TOWARD THE NORTH IS EXPECTED BY LATE TONIGHT OR EARLY FRIDAY. ON THE
FORECAST TRACK...THE CENTER OF ISAAC WILL CONTINUE TO MOVE OVER
LOUISIANA TODAY...OVER ARKANSAS ON FRIDAY...AND OVER SOUTHERN
MISSOURI FRIDAY NIGHT.

MAXIMUM SUSTAINED WINDS ARE NEAR 40 MPH...65 KM/H... WITH HIGHER
GUSTS. WEAKENING IS FORECAST DURING THE NEXT 48 HOURS AS THE STORM
CONTINUES TO MOVE OVER LAND...AND ISAAC IS EXPECTED TO BECOME A
TROPICAL DEPRESSION THIS AFTERNOON OR TONIGHT.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 195 MILES...315
KM...MAINLY TO THE SOUTHEAST OF THE CENTER OVER WATER AND ALSO
ALONG THE COASTS OF MISSISSIPPI AND SOUTHEASTERN LOUISIANA.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS 992 MB...29.29 INCHES.


HAZARDS AFFECTING LAND
----------------------
EVEN THOUGH ISAAC IS NO LONGER A HURRICANE...LIFE-THREATENING
HAZARDS FROM STORM SURGE...INLAND FLOODING...AND TORNADOES ARE
STILL OCCURRING.

STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING
WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND
IF THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...

* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...4 TO 8 FT
* ALABAMA...2 TO 4 FT
* SOUTH-CENTRAL LOUISIANA...1 TO 3 FT
* FLORIDA PANHANDLE...1 TO 2 FT

THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF
ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE
TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER
SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE
COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.

BASED ON OBSERVATIONS FROM NATIONAL OCEAN SERVICE TIDE GAGES...AT
NEW CANAL STATION LOUISIANA...A STORM SURGE OF NEAR 6 FEET IS
PERSISTING ALONG THE SOUTHERN SHORE OF LAKE PONTCHARTRAIN...AND A
STORM SURGE VALUE OF NEAR 5 FEET CONTINUES AT WAVELAND MISSISSIPPI.

WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING
AREA THROUGH THIS AFTERNOON.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 7 TO 14 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 25 INCHES
POSSIBLE...OVER NORTHERN AND EASTERN LOUISIANA....MUCH OF
MISSISSIPPI...SOUTHWESTERN ALABAMA...ARKANSAS AND INTO SOUTHERN
MISSOURI THROUGH FRIDAY. THESE RAINS COULD RESULT IN SIGNIFICANT
LOWLAND FLOODING. THE HEAVY RAIN POTENTIAL WILL BE SPREADING
EASTWARD THIS WEEKEND INTO PORTIONS OF THE MID-WEST AND OHIO VALLEY
REGIONS.

TORNADOES...TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF COAST
REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY THROUGH
TODAY.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE
NEXT DAY OR SO.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...400 PM CDT.

$$
FORECASTER STEWART
 

Charles

Captain Weather
#75
The last one for Isaac Thursday at 4 PM

TROPICAL DEPRESSION ISAAC ADVISORY NUMBER 39
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
400 PM CDT THU AUG 30 2012

...SLOW-MOVING ISAAC WEAKENS TO A DEPRESSION OVER NORTHERN
LOUISIANA...
...FLOODING RAINS CONTINUE ACROSS SOUTHEASTERN LOUISIANA AND
MISSISSIPPI...


SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...32.7N 92.6W
ABOUT 35 MI...55 KM WNW OF MONROE LOUISIANA
ABOUT 40 MI...60 KM SSE OF EL DORADO ARKANSAS
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...995 MB...29.38 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

ALL COASTAL WARNINGS HAVE BEEN DISCONTINUED.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 400 PM CDT...2100 UTC...THE CENTER OF TROPICAL DEPRESSION ISAAC
WAS LOCATED NEAR LATITUDE 32.7 NORTH...LONGITUDE 92.6 WEST. THE
DEPRESSION IS MOVING TOWARD THE NORTH-NORTHWEST NEAR 12 MPH...19
KM/H. A TURN TOWARD THE NORTH IS EXPECTED BY LATE TONIGHT OR EARLY
FRIDAY. ON THE FORECAST TRACK...THE CENTER OF ISAAC WILL CONTINUE
TO MOVE OVER LOUISIANA TODAY...OVER ARKANSAS ON FRIDAY...AND OVER
SOUTHERN MISSOURI FRIDAY NIGHT.

MAXIMUM SUSTAINED WINDS ARE NEAR 35 MPH...55 KM/H...WITH HIGHER
GUSTS. GRADUAL WEAKENING IS FORECAST DURING THE NEXT 48 HOURS...AND
ISAAC IS EXPECTED TO BECOME A POST-TROPICAL REMNANT LOW PRESSURE
SYSTEM BY SATURDAY.

THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE
OBSERVATIONS IS 995 MB...29.38 INCHES.


HAZARDS AFFECTING LAND
----------------------
EVEN THOUGH ISAAC IS NO LONGER A TROPICAL STORM...DANGEROUS
HAZARDS FROM STORM SURGE...INLAND FLOODING...AND TORNADOES ARE
STILL OCCURRING.

STORM SURGE...WATER LEVELS WILL REMAIN ELEVATED IN SOUTHEASTERN
LOUISIANA AND COASTAL MISSISSIPPI THROUGH TONIGHT...AND GRADUALLY
SUBSIDE TOMORROW. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE
SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE.

BASED ON OBSERVATIONS FROM NATIONAL OCEAN SERVICE TIDE GAGES...AT
NEW CANAL STATION LOUISIANA...A STORM SURGE OF MORE THAN 5 FEET IS
PERSISTING ALONG THE SOUTHERN SHORE OF LAKE PONTCHARTRAIN...AND A
STORM SURGE VALUE OF NEAR 4 FEET CONTINUES AT WAVELAND MISSISSIPPI.

WIND...TROPICAL-STORM-FORCE WIND GUSTS COULD OCCUR ALONG THE COASTS
OF SOUTHEASTERN LOUISIANA AND MISSISSIPPI THROUGH THIS AFTERNOON.

RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 7 TO 14 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 25 INCHES
POSSIBLE...OVER NORTHERN AND EASTERN LOUISIANA....MUCH OF
MISSISSIPPI...SOUTHWESTERN ALABAMA...ARKANSAS...AND INTO SOUTHERN
MISSOURI THROUGH FRIDAY. THESE RAINS COULD RESULT IN SIGNIFICANT
LOWLAND FLOODING. THE HEAVY RAIN POTENTIAL WILL BE SPREADING
EASTWARD THIS WEEKEND INTO PORTIONS OF THE MID-WEST AND OHIO VALLEY
REGIONS.

TORNADOES...TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF COAST
REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY THROUGH
TONIGHT.

SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO
AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST THROUGH
TONIGHT BEFORE SUBSIDING ON SATURDAY.


NEXT ADVISORY
-------------
THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM. FUTURE INFORMATION ON THIS SYSTEM CAN BE
FOUND IN PUBLIC ADVISORIES ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER...UNDER AWIPS HEADER TCPAT4 AND WMO HEADER WTNT34
KWNH...BEGINNING AT 10 PM CDT.


$$
FORECASTER STEWART