Hurricane Katia

Forecast Advisory 21

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000
WTNT23 KNHC 030852
TCMAT3

TROPICAL STORM LEE FORECAST/ADVISORY NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL AL132011
0900 UTC SAT SEP 03 2011

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* ALABAMA/FLORIDA BORDER WESTWARD TO SABINE PASS TEXAS...INCLUDING
THE CITY OF NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE MAUREPAS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* ALABAMA/FLORIDA BORDER EASTWARD TO DESTIN FLORIDA

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.

TROPICAL STORM CENTER LOCATED NEAR 28.8N 91.9W AT 03/0900Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHWEST OR 345 DEGREES AT 6 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 995 MB
MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT.
34 KT.......175NE 175SE 0SW 90NW.
12 FT SEAS..180NE 210SE 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 28.8N 91.9W AT 03/0900Z
AT 03/0600Z CENTER WAS LOCATED NEAR 28.5N 91.8W

FORECAST VALID 03/1800Z 29.3N 92.0W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 45NE 60SE 0SW 0NW.
34 KT...175NE 175SE 0SW 75NW.

FORECAST VALID 04/0600Z 30.0N 91.9W...INLAND
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 60NE 60SE 0SW 0NW.
34 KT...175NE 175SE 0SW 75NW.

FORECAST VALID 04/1800Z 30.5N 91.5W...INLAND
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...125NE 175SE 0SW 60NW.

FORECAST VALID 05/0600Z 31.0N 90.7W...INLAND
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 60NE 175SE 100SW 0NW.

FORECAST VALID 06/0600Z 32.5N 88.5W...INLAND
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 0NE 150SE 150SW 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 07/0600Z 35.0N 86.0W...INLAND POST-TROP/EXTRATROP
MAX WIND 25 KT...GUSTS 35 KT.

OUTLOOK VALID 08/0600Z 37.0N 82.5W...INLAND POST-TROP/EXTRATROP
MAX WIND 20 KT...GUSTS 30 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 28.8N 91.9W

NEXT ADVISORY AT 03/1500Z

$$
FORECASTER BEVEN




000
WTNT22 KNHC 030857
TCMAT2

HURRICANE KATIA FORECAST/ADVISORY NUMBER 21
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
0900 UTC SAT SEP 03 2011

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

HURRICANE CENTER LOCATED NEAR 19.3N 55.1W AT 03/0900Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 988 MB
MAX SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT.
64 KT....... 30NE 0SE 0SW 0NW.
50 KT.......100NE 50SE 40SW 70NW.
34 KT.......150NE 120SE 75SW 135NW.
12 FT SEAS..270NE 210SE 210SW 270NW.
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 19.3N 55.1W AT 03/0900Z
AT 03/0600Z CENTER WAS LOCATED NEAR 19.0N 54.7W

FORECAST VALID 03/1800Z 20.1N 56.3W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 30NE 0SE 0SW 0NW.
50 KT...100NE 50SE 40SW 70NW.
34 KT...150NE 120SE 75SW 135NW.

FORECAST VALID 04/0600Z 21.1N 57.9W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 30NE 0SE 0SW 0NW.
50 KT...100NE 50SE 40SW 70NW.
34 KT...150NE 120SE 75SW 135NW.

FORECAST VALID 04/1800Z 22.2N 59.7W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 30NE 0SE 0SW 0NW.
50 KT...100NE 50SE 40SW 70NW.
34 KT...150NE 120SE 75SW 135NW.

FORECAST VALID 05/0600Z 23.4N 61.5W
MAX WIND 75 KT...GUSTS 90 KT.
50 KT...100NE 70SE 50SW 80NW.
34 KT...180NE 135SE 90SW 150NW.

FORECAST VALID 06/0600Z 26.0N 64.5W
MAX WIND 90 KT...GUSTS 110 KT.
50 KT...110NE 80SE 60SW 80NW.
34 KT...180NE 135SE 100SW 150NW.

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 07/0600Z 28.5N 67.5W
MAX WIND 100 KT...GUSTS 120 KT.

OUTLOOK VALID 08/0600Z 31.0N 70.0W
MAX WIND 95 KT...GUSTS 115 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.3N 55.1W

NEXT ADVISORY AT 03/1500Z

$$
FORECASTER BLAKE