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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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Summary for Tropical Storm Harvey (AT4/AL092017)
2017-08-18 10:41:50| National Hurricane Center (Atlantic)
...HARVEY DRENCHING THE WINDWARD ISLANDS... As of 5:00 AM AST Fri Aug 18 the center of Harvey was located near 13.1, -59.1 with movement W at 18 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 40 mph.
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Tropical Storm Harvey Graphics
2017-08-18 07:39:04| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Fri, 18 Aug 2017 05:39:04 GMT Wind Speed Probabilities last updated Fri, 18 Aug 2017 03:25:50 GMT
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Summary for Tropical Storm Harvey (AT4/AL092017)
2017-08-18 07:37:55| National Hurricane Center (Atlantic)
...WEATHER DETERIORATING IN THE WINDWARD ISLANDS AS HARVEY APPROACHES... As of 2:00 AM AST Fri Aug 18 the center of Harvey was located near 13.0, -58.1 with movement W at 17 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.
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Tropical Storm Harvey Public Advisory Number 3A
2017-08-18 07:37:55| National Hurricane Center (Atlantic)
Issued at 200 AM AST Fri Aug 18 2017 000 WTNT34 KNHC 180537 TCPAT4 BULLETIN Tropical Storm Harvey Intermediate Advisory Number 3A NWS National Hurricane Center Miami FL AL092017 200 AM AST Fri Aug 18 2017 ...WEATHER DETERIORATING IN THE WINDWARD ISLANDS AS HARVEY APPROACHES... SUMMARY OF 200 AM AST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...13.0N 58.1W ABOUT 95 MI...155 KM E OF BARBADOS ABOUT 200 MI...325 KM ESE OF ST. LUCIA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- CHANGES 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 A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within 6 to 18 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within 6 to 18 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 200 AM AST (0600 UTC), the center of Tropical Storm Harvey was located near latitude 13.0 North, longitude 58.1 West. Harvey is moving toward the west near 17 mph (28 km/h), and a continued westward motion with a slight increase in forward speed is expected over the next couple of days. On the forecast track, Harvey should move through the Windward Islands and into the eastern Caribbean Sea later today. Maximum sustained winds remain near 40 mph (65 km/h) with higher gusts. Slow strengthening is possible during the next 48 hours. Tropical-storm-force winds extend outward up to 60 miles (95 km) mainly to the north of the center. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected to first reach the Lesser Antilles within the warning area later this morning, making outside preparations difficult or dangerous. Tropical storm conditions are possible in the watch area later today. RAINFALL: Harvey is expected to produce rainfall totals of 2 to 4 inches across portions of the Windward Islands from Martinique southward to Grenada. These rains could cause life-threatening flash floods and mudslides. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. $$ Forecaster Avila
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