Issued at 1100 PM EDT Sun Oct 20 2024
773 WTNT31 KNHC 210244 TCPAT1 BULLETIN Tropical Storm Oscar Advisory Number 8 NWS National Hurricane Center Miami FL AL162024 1100 PM EDT Sun Oct 20 2024 ...HEAVY RAINFALL LIKELY TO CAUSE SIGNIFICANT FLASH FLOODING AND MUDSLIDES AS SLOW-MOVING OSCAR MOVES OVER EASTERN CUBA... SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...20.3N 74.6W ABOUT 25 MI...45 KM WNW OF THE EASTERN TIP OF CUBA ABOUT 40 MI...65 KM E OF GUANTANAMO CUBA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...WSW OR 245 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...990 MB...29.24 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Cuba has discontinued the Hurricane Watch and changed the Hurricane Warning to a Tropical Storm Warning for the north coast of Cuba. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * North coast of the Cuban Provinces of Las Tunas, Holguin, and Guantanamo to Punta Maisi * South coast of Cuban Province of Guantanamo * Southeastern Bahamas A Tropical Storm Watch is in effect for... * North coast of the Cuban Province of Camaguey * Central Bahamas A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests in the remainder of the Bahamas should monitor the progress of Oscar. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM EDT (0300 UTC), the center of Tropical Storm Oscar was located inland over eastern Cuba near latitude 20.3 North, longitude 74.6 West. Oscar is moving toward the west-southwest near 6 mph (9 km/h). A turn to the west and northwest is expected on Monday, followed by a faster northeastward motion on Tuesday and Wednesday. On the forecast track, the center of Oscar is expected to continue moving across eastern Cuba tonight and Monday, then emerge off the northern coast of Cuba late Monday and move near the southeastern and central Bahamas on Tuesday. Maximum sustained winds have decreased to near 70 mph (110 km/h) with higher gusts. Additional weakening is expected as Oscar interacts with the mountainous terrain of eastern Cuba, but Oscar could still be a tropical storm when it moves north of Cuba late Monday and then moves near the southeastern and central Bahamas on Tuesday. Tropical-storm-force winds extend outward up to 45 miles (75 km) from the center. The estimated minimum central pressure is 990 mb (29.24 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Oscar can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1 and WMO header WTNT41 KNHC and on the web at hurricanes.gov/text/MIATCDAT1.shtml WIND: Tropical storm conditions are expected in the warning area and possible in the watch area of Cuba tonight and Monday. Tropical storm conditions are expected in the warning area in parts of the southeastern Bahamas and possible in the watch area in parts of the central Bahamas Monday into Tuesday. RAINFALL: Through Wednesday morning, rainfall amounts of 6 to 12 inches with isolated amounts of 18 inches are expected across eastern Cuba. Across the southeastern Bahamas, 3 to 5 inches are expected, with isolated amounts around 8 inches. Across the Turks and Caicos, an additional 2 to 4 inches of rain is expected through Wednesday morning. For a complete depiction of forecast rainfall associated with Oscar, please see the National Weather Service Storm Total Rainfall Graphic, available at hurricanes.gov/graphics_at1.shtml?rainqpf STORM SURGE: Water levels of 1 to 3 ft above normal tide levels are expected along the north shore of Cuba in areas of onshore winds. Near the coast, the surge will be accompanied by large and destructive waves. NEXT ADVISORY ------------- Next intermediate advisory at 200 AM EDT. Next complete advisory at 500 AM EDT. $$ Forecaster Reinhart
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