Hurricane Irene

Forecast Advisory 18

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339
WTNT24 KNHC 242052
TCMAT4

HURRICANE IRENE FORECAST/ADVISORY NUMBER 18
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011
2100 UTC WED AUG 24 2011

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* THE SOUTHEASTERN...CENTRAL...AND NORTHWESTERN BAHAMAS

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE TURKS AND CAICOS ISLANDS

INTERESTS FROM THE CAROLINAS NORTHWARD THROUGH NEW ENGLAND
SHOULD MONITOR THE PROGRESS OF IRENE.

HURRICANE CENTER LOCATED NEAR 23.1N 74.7W AT 24/2100Z
POSITION ACCURATE WITHIN 15 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 10 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 954 MB
EYE DIAMETER 20 NM
MAX SUSTAINED WINDS 105 KT WITH GUSTS TO 130 KT.
64 KT....... 50NE 45SE 25SW 40NW.
50 KT.......100NE 70SE 50SW 80NW.
34 KT.......200NE 180SE 100SW 150NW.
12 FT SEAS..320NE 270SE 90SW 300NW.
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 23.1N 74.7W AT 24/2100Z
AT 24/1800Z CENTER WAS LOCATED NEAR 22.7N 74.3W

FORECAST VALID 25/0600Z 24.3N 75.8W
MAX WIND 110 KT...GUSTS 135 KT.
64 KT... 50NE 45SE 25SW 40NW.
50 KT...100NE 70SE 50SW 80NW.
34 KT...200NE 180SE 100SW 150NW.

FORECAST VALID 25/1800Z 26.1N 76.8W
MAX WIND 115 KT...GUSTS 140 KT.
64 KT... 50NE 45SE 25SW 40NW.
50 KT...100NE 70SE 50SW 80NW.
34 KT...200NE 180SE 100SW 150NW.

FORECAST VALID 26/0600Z 28.2N 77.3W
MAX WIND 115 KT...GUSTS 140 KT.
64 KT... 60NE 50SE 30SW 50NW.
50 KT...100NE 80SE 60SW 80NW.
34 KT...200NE 180SE 125SW 160NW.

FORECAST VALID 26/1800Z 30.1N 77.3W
MAX WIND 110 KT...GUSTS 135 KT.
50 KT...100NE 80SE 60SW 80NW.
34 KT...200NE 200SE 125SW 160NW.

FORECAST VALID 27/1800Z 34.3N 75.8W
MAX WIND 100 KT...GUSTS 120 KT.
50 KT...100NE 100SE 60SW 80NW.
34 KT...225NE 225SE 140SW 140NW.

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 28/1800Z 39.5N 73.0W
MAX WIND 85 KT...GUSTS 105 KT.

OUTLOOK VALID 29/1800Z 47.0N 69.0W...POST-TROP/EXTRATROP
MAX WIND 55 KT...GUSTS 65 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.1N 74.7W

NEXT ADVISORY AT 25/0300Z

$$
FORECASTER BROWN