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| #983215 (Received by flhurricane at: 8:00 AM 20.Sep.2019) TCPAT5 BULLETIN Hurricane Jerry Intermediate Advisory Number 12A NWS National Hurricane Center Miami FL AL102019 800 AM AST Fri Sep 20 2019 ...HEAVY RAINS POSSIBLE OVER THE NORTHERN LEEWARD ISLANDS FROM JERRY... SUMMARY OF 800 AM AST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...18.5N 59.6W ABOUT 155 MI...245 KM ENE OF BARBUDA MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.20 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * St. Maarten * St. Martin * St. Barthelemy * Saba and St. Eustatius A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within 24 hours. Interests elsewhere in the northern Leeward Islands should monitor the progress of Jerry. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 800 AM AST (1200 UTC), the center of Hurricane Jerry was located near latitude 18.5 North, longitude 59.6 West. Jerry is moving toward the west-northwest near 16 mph (26 km/h). A west-northwest to northwest motion at a decreasing forward speed is expected over the next few days. On the forecast track, the center of Jerry will move north of the northern Leeward Islands later today, pass well north of Puerto Rico on Saturday, and be well east-northeast of the southeastern Bahamas on Sunday. Maximum sustained winds have decreased to near 100 mph (155 km/h) with higher gusts. A gradual weakening trend is forecast to continue today, but Jerry is expected to remain a hurricane during the next few days. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 80 miles (130 km). An Air Force Reserve Hurricane Hunter aircraft has recently reported a minimum central pressure of 989 mb (29.20 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Jerry can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml. RAINFALL: Jerry is expected to produce 1 to 3 inches of rainfall, with isolated maximum totals of 4 to 6 inches from Barbuda northwest across St. Maarten, Anguilla, and Anegada. This rainfall may produce life-threatening flash floods. Jerry is forecast to produce total rainfall accumulations of 1 to 2 inches with maximum amounts of 3 inches across the Virgin Islands and Puerto Rico. WIND: Tropical storm conditions are possible within the watch areas later today. SURF: Swells generated by Jerry are affecting portions of the northern Leeward Islands. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Blake |
