Hurricane ISAAC

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HURRICANE ISAAC FORECAST/ADVISORY NUMBER  34
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092012
1500 UTC WED AUG 29 2012
 
CHANGES IN WATCHES AND WARNINGS 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
 
HURRICANE CENTER LOCATED NEAR 29.6N  90.7W AT 29/1500Z
POSITION ACCURATE WITHIN  15 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT   5 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  972 MB
MAX SUSTAINED WINDS  65 KT WITH GUSTS TO  80 KT.
64 KT....... 30NE  40SE   0SW   0NW.
50 KT....... 80NE  70SE  40SW  40NW.
34 KT.......150NE 150SE 140SW 100NW.
12 FT SEAS..180NE 240SE  90SW   0NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
 
REPEAT...CENTER LOCATED NEAR 29.6N  90.7W AT 29/1500Z
AT 29/1200Z CENTER WAS LOCATED NEAR 29.4N  90.5W
 
FORECAST VALID 30/0000Z 30.2N  91.4W...INLAND
MAX WIND  55 KT...GUSTS  70 KT.
50 KT... 50NE  60SE  40SW  30NW.
34 KT...130NE 150SE 140SW 100NW.
 
FORECAST VALID 30/1200Z 31.2N  92.2W...INLAND
MAX WIND  45 KT...GUSTS  60 KT.
34 KT... 90NE 120SE 120SW  70NW.
 
FORECAST VALID 31/0000Z 32.8N  93.1W...INLAND
MAX WIND  30 KT...GUSTS  45 KT.
 
FORECAST VALID 31/1200Z 34.6N  93.5W...INLAND
MAX WIND  25 KT...GUSTS  40 KT.
 
FORECAST VALID 01/1200Z 38.0N  92.5W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 175 NM
ON DAY 4 AND 225 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
 
OUTLOOK VALID 02/1200Z 40.0N  89.0W...POST-TROP/REMNT LOW
MAX WIND  15 KT...GUSTS  20 KT.
 
OUTLOOK VALID 03/1200Z 41.0N  85.0W...POST-TROP/REMNT LOW
MAX WIND  15 KT...GUSTS  20 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 29.6N  90.7W
 
NEXT ADVISORY AT 29/2100Z
 
$$
FORECASTER STEWART
 
 
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