Issued at 500 PM AST Mon Aug 12 2024
000 WTNT35 KNHC 122045 TCPAT5 BULLETIN Tropical Storm Ernesto Advisory Number 5 NWS National Hurricane Center Miami FL AL052024 500 PM AST Mon Aug 12 2024 ...DISTURBANCE BECOMES TROPICAL STORM ERNESTO... ...EXPECTED TO BRING TROPICAL STORM FORCE WINDS AND HEAVY RAINS TO PORTIONS OF THE LEEWARD ISLANDS BEGINNING LATE TONIGHT... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...16.0N 57.5W ABOUT 295 MI...475 KM ESE OF ANTIGUA ABOUT 590 MI...950 KM ESE OF SAN JUAN PUERTO RICO MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 28 MPH...44 KM/H MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * St. Kitts, Nevis, Montserrat, Antigua, Barbuda, and Anguilla * Guadeloupe * St. Martin and St. Barthelemy * Sint Maarten * British Virgin Islands * U.S. Virgin Islands * Puerto Rico * Vieques * Culebra A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. Interests elsewhere in the northeastern Caribbean should monitor the progress of Ernesto. 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 500 PM AST (2100 UTC), the center of Tropical Storm Ernesto was located near latitude 16.0 North, longitude 57.5 West. Ernesto is moving toward the west-northwest near 28 mph (44 km/h). A westward to west-northwestward motion with some decrease in forward speed is expected during the next couple of days. On the forecast track, Ernesto is expected to move across portions of the Leeward Islands late tonight or Tuesday and near or over the U.S. and British Virgin Islands and Puerto Rico by Tuesday evening. Ernesto is then forecast to turn northward over the western Atlantic. Maximum sustained winds have increased to near 40 mph (65 km/h) with higher gusts. Gradual strengthening is expected during the next few days. Tropical-storm-force winds extend outward up to 60 miles (95 km) from the center. The estimated minimum central pressure is 1009 mb (29.80 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Ernesto can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC and on the web at hurricanes.gov/text/MIATCDAT5.shtml. RAINFALL: Tropical Storm Ernesto is expected to produce total rain accumulations of 4 to 6 inches over portions of the Leeward and Virgin Islands. For Puerto Rico, 3 to 6 inches of rainfall, with maximum amounts of 10 inches, is expected. For a complete depiction of forecast rainfall associated with Tropical Storm Ernesto, please see the National Weather Service Storm Total Rainfall Graphic, available at hurricanes.gov/graphics_at5.shtml?rainqpf Elsewhere in the Caribbean, Tropical Storm Ernesto is expected to produce the following rain accumulations through Friday morning: Windward Islands… 1 to 4 inches Eastern Hispaniola… 2 to 4 inches WIND: Tropical storm conditions are expected in the warning area for the Leeward Islands beginning late tonight or early Tuesday. Tropical storm conditions are expected to begin spreading over the Virgin Islands and Puerto Rico by Tuesday evening. STORM SURGE: A storm surge will raise water levels by as much as 1 to 3 feet above ground level for the eastern coast of Puerto Rico from San Juan to Guayama, including the islands of Culebra and Vieques and in the U.S. Virgin Islands, including St. Thomas, St. John, and St. Croix. A storm surge will raise water levels by as much as 1 to 3 feet above normal tide levels in the British Virgin Islands. Near the coast, the surge will be accompanied by large and destructive waves. SURF: Swells generated by Ernesto will likely begin to affect portions of the Leeward Islands beginning late tonight. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 800 PM AST. Next complete advisory at 1100 PM AST. $$ Forecaster Cangialosi
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