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Tropical Storm Harvey Forecast Advisory Number 4

2017-08-18 10:41:51| National Hurricane Center (Atlantic)

Issued at 0900 UTC FRI AUG 18 2017 000 WTNT24 KNHC 180841 TCMAT4 TROPICAL STORM HARVEY FORECAST/ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092017 0900 UTC FRI AUG 18 2017 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * MARTINIQUE * ST. LUCIA * BARBADOS * ST. VINCENT AND THE GRENADINES A TROPICAL STORM WATCH IS IN EFFECT FOR... * DOMINICA TROPICAL STORM CENTER LOCATED NEAR 13.1N 59.1W AT 18/0900Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 16 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1004 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 50NE 0SE 0SW 50NW. 12 FT SEAS.. 60NE 0SE 0SW 60NW. 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 13.1N 59.1W AT 18/0900Z AT 18/0600Z CENTER WAS LOCATED NEAR 13.0N 58.3W FORECAST VALID 18/1800Z 13.2N 61.7W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 50NE 0SE 0SW 50NW. FORECAST VALID 19/0600Z 13.5N 65.2W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 50NE 0SE 0SW 50NW. FORECAST VALID 19/1800Z 13.9N 68.8W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 20/0600Z 14.1N 72.7W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 0SE 0SW 30NW. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 21/0600Z 15.0N 80.2W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 20SE 20SW 40NW. 34 KT... 80NE 40SE 40SW 80NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 22/0600Z 16.5N 86.5W MAX WIND 60 KT...GUSTS 75 KT. OUTLOOK VALID 23/0600Z 17.5N 90.0W...INLAND MAX WIND 35 KT...GUSTS 45 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.1N 59.1W NEXT ADVISORY AT 18/1500Z $$ FORECASTER AVILA

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