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Summary for Tropical Storm Laura (AT3/AL132020)
2020-08-23 01:47:58| National Hurricane Center (Atlantic)
...LAURA NEAR THE EASTERN PORTION OF THE DOMINICAN REPUBLIC... ...HEAVY RAINS OCCURRING OVER PUERTO RICO AND THE DOMINICAN REPUBLIC... As of 8:00 PM AST Sat Aug 22 the center of Laura was located near 18.1, -68.7 with movement W at 18 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 50 mph.
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Tropical Storm Laura Public Advisory Number 12A
2020-08-23 01:47:58| National Hurricane Center (Atlantic)
Issued at 800 PM AST Sat Aug 22 2020 000 WTNT33 KNHC 222347 TCPAT3 BULLETIN Tropical Storm Laura Intermediate Advisory Number 12A NWS National Hurricane Center Miami FL AL132020 800 PM AST Sat Aug 22 2020 ...LAURA NEAR THE EASTERN PORTION OF THE DOMINICAN REPUBLIC... ...HEAVY RAINS OCCURRING OVER PUERTO RICO AND THE DOMINICAN REPUBLIC... SUMMARY OF 800 PM AST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...18.1N 68.7W ABOUT 85 MI...135 KM ESE OF SANTO DOMINGO DOMINICAN REPUBLIC MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 18 MPH...30 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Cuba has issued a Tropical Storm Watch for the following provinces: Ciego De Avila, Sancti Spiritus, Villa Clara, Cienfuegos, Matanzas, Mayabeque, La Habana, Artemisa, and Pinar Del Rio. 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 * Cuban provinces of Camaguey, Las Tunas, Holguin, Guantanamo, Santiago de Cuba, and Granma A Tropical Storm Watch is in effect for... * The central Bahamas * Andros Island * Florida Keys from Ocean Reef to Key West and the Dry Tortugas * Florida Bay * Cuban provinces of Ciego De Avila, Sancti Spiritus, Villa Clara, Cienfuegos, Matanzas, Mayabeque, La Habana, Artemisa, and Pinar Del Rio It should be noted that the Cuban province of Pinar Del Rio is still under a Tropical Storm Warning for Marco. 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. 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 800 PM AST (0000 UTC), the center of Tropical Storm Laura was located near latitude 18.1 North, longitude 68.7 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 across Hispaniola tonight and early Sunday, near or over Cuba Sunday and Monday, and into the southeastern Gulf of Mexico Monday night and Tuesday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. No significant changes in strength are forecast during the next 48 hours while Laura moves near or over Hispaniola and Cuba. Strengthening is forecast once Laura moves into the Gulf of Mexico Monday night and Tuesday. Tropical-storm-force winds extend outward up to 205 miles (335 km) from the center. The estimated minimum central pressure is 1004 mb (29.65 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 potentially 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 through Sunday night. Tropical storm conditions are possible within portions of the watch area on Monday. SURF: Swells generated by Laura are affecting portions of the northern Leeward Islands, Puerto Rico, and Hispaniola. These swells are expected to spread across Cuba, much of the Bahamas, and the Florida Keys during the next few days. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Cangialosi
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Tropical Storm Laura Graphics
2020-08-23 01:47:40| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sat, 22 Aug 2020 23:47:40 GMT Wind Speed Probabilities last updated Sat, 22 Aug 2020 21:24:46 GMT
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Summary for Tropical Storm Marco (AT4/AL142020)
2020-08-23 01:47:24| National Hurricane Center (Atlantic)
...MARCO ENTERS THE GULF OF MEXICO... ...STORM SURGE AND HURRICANE WATCHES IN EFFECT FOR PORTIONS OF THE NORTHERN GULF COAST... As of 7:00 PM CDT Sat Aug 22 the center of Marco was located near 22.3, -86.0 with movement NNW at 13 mph. The minimum central pressure was 994 mb with maximum sustained winds of about 65 mph.
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Tropical Storm Marco Public Advisory Number 10A
2020-08-23 01:47:24| National Hurricane Center (Atlantic)
Issued at 700 PM CDT Sat Aug 22 2020 000 WTNT34 KNHC 222347 TCPAT4 BULLETIN Tropical Storm Marco Intermediate Advisory Number 10A NWS National Hurricane Center Miami FL AL142020 700 PM CDT Sat Aug 22 2020 ...MARCO ENTERS THE GULF OF MEXICO... ...STORM SURGE AND HURRICANE WATCHES IN EFFECT FOR PORTIONS OF THE NORTHERN GULF COAST... SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...22.3N 86.0W ABOUT 75 MI...120 KM WNW OF THE WESTERN TIP OF CUBA ABOUT 510 MI...820 KM SSE OF THE MOUTH OF THE MISSISSIPPI RIVER MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NNW OR 340 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...994 MB...29.35 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Watch is in effect for... * Sabine Pass to the Alabama/Florida border * Lake Pontchartrain, Lake Maurepas, Lake Borgne, and Mobile Bay A Hurricane Watch is in effect for... * Intracoastal City Louisiana to the Mississippi/Alabama border * Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans A Tropical Storm Warning is in effect for... * Province of Pinar del Rio Cuba A Tropical Storm Watch is in effect for... * Mississippi/Alabama border to the Alabama/Florida border A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 700 PM CDT (0000 UTC), the center of Tropical Storm Marco was located by an Air Force Reserve Hurricane Hunter Aircraft near latitude 22.3 North, longitude 86.0 West. Marco is moving toward the north-northwest near 13 mph (20 km/h). Marco is expected to continue moving toward the north-northwest across the central Gulf of Mexico on Sunday and is forecast to reach the northern Gulf coast on Monday. After moving inland, Marco is expected to slow down and turn toward the northwest and west-northwest Monday night and Tuesday, moving across southern Louisiana and east Texas. Maximum sustained winds based on preliminary data from the reconnaissance aircraft are near 65 mph (100 km/h) with higher gusts. Strengthening is forecast during the next day or two, and Marco is expected to become a hurricane later tonight or on Sunday. Marco is likely to still be at or near hurricane strength when it reaches the northern Gulf coast on Monday. Weakening is forecast to occur while the center moves farther inland Monday night and Tuesday. Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center. The latest minimum central pressure reported by the hurricane hunter plane was 994 mb (29.35 inches). HAZARDS AFFECTING LAND ---------------------- STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Grand Isle LA to the AL/FL Border including Lake Borgne and Mobile Bay...3-5 ft Lake Pontchartrain and Lake Maurepas...2-4 ft Sabine Pass to Grand Isle LA...2-4 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and destructive waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Hurricane conditions are possible within the hurricane watch area by midday Monday, with tropical storm conditions possible by early Monday. Tropical storm conditions are possible within the tropical storm watch area on Monday. Tropical storm conditions are expected to continue within the warning area in Cuba through this evening. RAINFALL: Marco is expected to produce the following rainfall accumulations through Monday: Far western Cuba: 2 to 4 inches of rain, with isolated maximum amounts of 6 inches possible Eastern portions of the Mexican states of Quintana Roo and Yucatan: 1 to 3 inches. Central U.S. Gulf Coast: 1 to 3 inches, isolated maximum amounts of 5 inches. This rainfall may result in areas of flash and urban flooding along the Central U.S. Gulf Coast. NEXT ADVISORY ------------- Next complete advisory at 1000 PM CDT. $$ Forecaster Zelinsky
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