Hurricane Isaac

Forecast Advisory 31

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521
WTNT21 KNHC 282033
TCMAT1

TROPICAL DEPRESSION ELEVEN FORECAST/ADVISORY NUMBER 1
NWS NATIONAL HURRICANE CENTER MIAMI FL AL112012
2100 UTC TUE AUG 28 2012

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL DEPRESSION CENTER LOCATED NEAR 23.8N 43.9W AT 28/2100Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
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 23.8N 43.9W AT 28/2100Z
AT 28/1800Z CENTER WAS LOCATED NEAR 23.7N 43.4W

FORECAST VALID 29/0600Z 24.1N 45.3W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 30NE 0SE 0SW 30NW.

FORECAST VALID 29/1800Z 24.3N 47.4W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 30NE 0SE 0SW 30NW.

FORECAST VALID 30/0600Z 24.6N 49.6W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 30NW.

FORECAST VALID 30/1800Z 25.3N 51.7W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 30NW.

FORECAST VALID 31/1800Z 27.5N 55.5W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 40SE 0SW 0NW.

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 01/1800Z 32.5N 55.0W
MAX WIND 35 KT...GUSTS 45 KT.

OUTLOOK VALID 02/1800Z 40.0N 48.0W
MAX WIND 35 KT...GUSTS 45 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.8N 43.9W

NEXT ADVISORY AT 29/0300Z

$$
FORECASTER BRENNAN





888
WTNT24 KNHC 282044
TCMAT4

HURRICANE ISAAC FORECAST/ADVISORY NUMBER 31
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
2100 UTC TUE AUG 28 2012

CHANGES IN WATCHES AND WARNINGS 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 CAMERON LOUISIANA

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

A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA. PREPARATIONS TO PROTECT LIFE AND
PROPERTY SHOULD BE RUSHED TO COMPLETION.

A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA.

HURRICANE CENTER LOCATED NEAR 28.7N 89.2W AT 28/2100Z
POSITION ACCURATE WITHIN 15 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 7 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 975 MB
MAX SUSTAINED WINDS 70 KT WITH GUSTS TO 85 KT.
64 KT....... 50NE 50SE 0SW 0NW.
50 KT....... 80NE 70SE 50SW 50NW.
34 KT.......160NE 150SE 150SW 150NW.
12 FT SEAS..180NE 200SE 150SW 130NW.
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 28.7N 89.2W AT 28/2100Z
AT 28/1800Z CENTER WAS LOCATED NEAR 28.5N 88.9W

FORECAST VALID 29/0600Z 29.4N 90.0W...INLAND
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 50NE 50SE 20SW 40NW.
50 KT... 80NE 70SE 60SW 60NW.
34 KT...150NE 150SE 150SW 150NW.

FORECAST VALID 29/1800Z 30.3N 91.0W...INLAND
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 70NE 70SE 60SW 50NW.
34 KT...130NE 150SE 150SW 110NW.

FORECAST VALID 30/0600Z 31.3N 91.9W...INLAND
MAX WIND 35 KT...GUSTS 45 KT.
34 KT...100NE 150SE 150SW 80NW.

FORECAST VALID 30/1800Z 33.0N 92.5W...INLAND
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 31/1800Z 36.0N 92.5W...INLAND
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 01/1800Z 39.0N 90.5W...POST-TROP/REMNT LOW
MAX WIND 15 KT...GUSTS 20 KT.

OUTLOOK VALID 02/1800Z 41.5N 86.5W...POST-TROP/REMNT LOW
MAX WIND 15 KT...GUSTS 20 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 28.7N 89.2W

NEXT ADVISORY AT 29/0300Z

$$
FORECASTER STEWART