000
WTNT24 KNHC 301437
TCMAT4
 
TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER  38
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092012
1500 UTC THU AUG 30 2012
 
CHANGES IN WATCHES AND WARNINGS 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
 
TROPICAL STORM CENTER LOCATED NEAR 31.7N  92.1W AT 30/1500Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE NORTH-NORTHWEST OR 330 DEGREES AT   8 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  987 MB
MAX SUSTAINED WINDS  35 KT WITH GUSTS TO  50 KT.
34 KT....... 60NE 170SE 140SW   0NW.
12 FT SEAS..  0NE 180SE   0SW   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 31.7N  92.1W AT 30/1500Z
AT 30/1200Z CENTER WAS LOCATED NEAR 31.3N  91.9W
 
FORECAST VALID 31/0000Z 33.0N  92.8W...INLAND
MAX WIND  30 KT...GUSTS  45 KT.
 
FORECAST VALID 31/1200Z 35.0N  93.3W...INLAND
MAX WIND  25 KT...GUSTS  35 KT.
 
FORECAST VALID 01/0000Z 37.0N  93.3W...INLAND
MAX WIND  20 KT...GUSTS  30 KT.
 
FORECAST VALID 01/1200Z 38.4N  92.3W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.
 
FORECAST VALID 02/1200Z 39.4N  89.2W...POST-TROP/REMNT LOW
MAX WIND  15 KT...GUSTS  25 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 03/1200Z 39.5N  86.0W...POST-TROP/REMNT LOW
MAX WIND  15 KT...GUSTS  25 KT.
 
OUTLOOK VALID 04/1200Z 39.5N  83.0W...POST-TROP/REMNT LOW
MAX WIND  15 KT...GUSTS  25 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 31.7N  92.1W
 
NEXT ADVISORY AT 30/2100Z
 
$$
FORECASTER STEWART