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Tropical Storm Laura Public Advisory Number 11
2020-08-22 16:42:17| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Sat Aug 22 2020 000 WTNT33 KNHC 221442 TCPAT3 BULLETIN Tropical Storm Laura Advisory Number 11 NWS National Hurricane Center Miami FL AL132020 1100 AM AST Sat Aug 22 2020 ...LAURA BRINGING HEAVY RAINS TO PORTIONS OF PUERTO RICO... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...17.8N 66.8W ABOUT 20 MI...30 KM SW OF PONCE PUERTO RICO ABOUT 210 MI...335 KM ESE OF SANTO DOMINGO DOMINICAN REPUBLIC MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 18 MPH...30 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Cuba has issued a Tropical Storm Watch for the provinces of Las Tunas, Holguin, Guantanamo, Santiago de Cuba, and Granma. The Tropical Storm Warning is discontinued for St. Maarten, St. Martin, St. Barthelemy, and the British Virgin Islands. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Puerto Rico, Vieques and Culebra * U.S. Virgin Islands * The northern coast of the Dominican Republic from Cabo Engano to the border with Haiti * The southern coast of the Dominican Republic from Cabo Engano to Punta Palenque * The northern coast of Haiti from Le Mole St. Nicholas to the border with the Dominican Republic * The southeastern Bahamas and the Turks and Caicos Islands A Tropical Storm Watch is in effect for... * The central Bahamas * Cuban provinces of Las Tunas, Holguin, Guantanamo, Santiago de Cuba, and Granma A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Cuba and in the Florida Keys should monitor the progress of Laura. Tropical storm warnings and additional watches will likely be issued for portions of central and eastern Cuba later today and tropical storm watches may be needed for the Florida Keys later today. For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside of the United States, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Laura was located near latitude 17.8 North, longitude 66.8 West. Laura is moving toward the west near 18 mph (30 km/h), and a generally west-northwestward motion is expected over the next few days. On the forecast track, the center of Laura will move near Puerto Rico this morning, near or over Hispaniola this afternoon and tonight, and near or over eastern Cuba Sunday and Sunday night. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Slow strengthening is expected during the next few days. Tropical-storm-force winds extend outward up to 205 miles (335 km) from the center. A Weatherflow station located at Isla Culebrita recently reported a wind gust to 43 mph (69 km/h). Another Weatherflow station at Sandy Point on the Island of St. Croix recently reported a wind gust to 41 mph (66 km/h). The estimated minimum central pressure is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Laura is expected to produce the following rainfall accumulations through Monday: Puerto Rico and the Virgin Islands: 3 to 6 inches, with maximum amounts of 8 inches possible along eastern portions and the southern slopes. Dominican Republic and Haiti: 4 to 8 inches, with maximum amounts of 12 inches across southern areas. Cuba: 3 to 6 inches, with isolated amounts of 8 inches. This heavy rainfall could lead to life-threatening flash and urban flooding, and the potential for mudslides across the Greater Antilles. Widespread minor to potential moderate river flooding is possible in Puerto Rico. 1 to 3 inches of rain, with isolated maximum totals of 5 inches, is expected over the northern Leeward Islands, the Turks and Caicos, southeast Bahamas and Jamaica. WIND: Tropical storm conditions are expected within portions of the warning area today through Sunday. Tropical storm conditions are possible within portions of the watch area Sunday night. SURF: Swells generated by Laura are affecting portions of the northern Leeward Islands. These swells are expected to spread across the northern coasts of Puerto Rico, Hispaniola and Cuba, and much of the Bahamas during the next few days. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM AST. Next complete advisory at 500 PM AST. $$ Forecaster Pasch
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Tropical Storm Laura Forecast Advisory Number 11
2020-08-22 16:41:47| National Hurricane Center (Atlantic)
Issued at 1500 UTC SAT AUG 22 2020 000 WTNT23 KNHC 221441 TCMAT3 TROPICAL STORM LAURA FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL AL132020 1500 UTC SAT AUG 22 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF CUBA HAS ISSUED A TROPICAL STORM WATCH FOR THE PROVINCES OF LAS TUNAS...HOLGUIN...GUANTANAMO...SANTIAGO DE CUBA...AND GRANMA. THE TROPICAL STORM WARNING IS DISCONTINUED FOR ST. MAARTEN...ST. MARTIN...ST. BARTHELEMY...AND THE BRITISH VIRGIN ISLANDS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * PUERTO RICO...VIEQUES AND CULEBRA * U.S. VIRGIN ISLANDS * THE NORTHERN COAST OF THE DOMINICAN REPUBLIC FROM CABO ENGANO TO THE BORDER WITH HAITI * THE SOUTHERN COAST OF THE DOMINICAN REPUBLIC FROM CABO ENGANO TO PUNTA PALENQUE * THE NORTHERN COAST OF HAITI FROM LE MOLE ST. NICHOLAS TO THE BORDER WITH THE DOMINICAN REPUBLIC * THE SOUTHEASTERN BAHAMAS AND THE TURKS AND CAICOS ISLANDS A TROPICAL STORM WATCH IS IN EFFECT FOR... * THE CENTRAL BAHAMAS * CUBAN PROVINCES OF LAS TUNAS...HOLGUIN...GUANTANAMO...SANTIAGO DE CUBA...AND GRANMA A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. INTERESTS ELSEWHERE IN CUBA AND IN THE FLORIDA KEYS SHOULD MONITOR THE PROGRESS OF LAURA. TROPICAL STORM WARNINGS AND ADDITIONAL WATCHES WILL LIKELY BE ISSUED FOR PORTIONS OF CENTRAL AND EASTERN CUBA LATER TODAY AND TROPICAL STORM WATCHES MAY BE NEEDED FOR THE FLORIDA KEYS LATER TODAY. TROPICAL STORM CENTER LOCATED NEAR 17.8N 66.8W AT 22/1500Z POSITION ACCURATE WITHIN 60 NM PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 16 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT.......180NE 180SE 0SW 0NW. 12 FT SEAS.. 90NE 30SE 0SW 30NW. 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 17.8N 66.8W AT 22/1500Z AT 22/1200Z CENTER WAS LOCATED NEAR 17.7N 66.1W FORECAST VALID 23/0000Z 18.6N 69.4W...INLAND MAX WIND 40 KT...GUSTS 50 KT. 34 KT...150NE 120SE 0SW 0NW. FORECAST VALID 23/1200Z 19.4N 72.6W...INLAND MAX WIND 40 KT...GUSTS 50 KT. 34 KT...150NE 50SE 0SW 80NW. FORECAST VALID 24/0000Z 20.9N 76.3W...INLAND MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 60SE 0SW 80NW. FORECAST VALID 24/1200Z 22.4N 80.0W...INLAND MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 60SE 0SW 80NW. FORECAST VALID 25/0000Z 23.7N 83.2W...OVER WATER MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 30SE 0SW 30NW. 34 KT...120NE 60SE 0SW 80NW. FORECAST VALID 25/1200Z 25.2N 86.2W MAX WIND 65 KT...GUSTS 80 KT. 50 KT... 50NE 40SE 0SW 40NW. 34 KT...120NE 90SE 40SW 90NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 26/1200Z 27.9N 90.6W MAX WIND 75 KT...GUSTS 90 KT. OUTLOOK VALID 27/1200Z 31.6N 92.5W...INLAND MAX WIND 40 KT...GUSTS 50 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.8N 66.8W INTERMEDIATE PUBLIC ADVISORY...WTNT33 KNHC/MIATCPAT3...AT 22/1800Z NEXT ADVISORY AT 22/2100Z $$ FORECASTER PASCH
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Tropical Storm Laura Graphics
2020-08-22 13:47:54| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sat, 22 Aug 2020 11:47:54 GMT Wind Speed Probabilities last updated Sat, 22 Aug 2020 09:24:49 GMT
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Tropical Storm Marco Graphics
2020-08-22 13:47:28| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sat, 22 Aug 2020 11:47:28 GMT Wind Speed Probabilities last updated Sat, 22 Aug 2020 09:31:56 GMT
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Summary for Tropical Storm Laura (AT3/AL132020)
2020-08-22 13:47:14| National Hurricane Center (Atlantic)
...DISORGANIZED LAURA CONTINUES TO MOVE NEAR EASTERN PUERTO RICO... As of 8:00 AM AST Sat Aug 22 the center of Laura was located near 17.7, -66.0 with movement W at 21 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.
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