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| #1024188 (Received by flhurricane at: 12:41 AM 07.Nov.2020) TCPAT4 BULLETIN Tropical Depression Eta Intermediate Advisory Number 26A NWS National Hurricane Center Miami FL AL292020 1200 AM CST Sat Nov 07 2020 ...ETA FORECAST TO GRADUALLY STRENGTHEN... ...TROPICAL STORM CONDITIONS EXPECTED IN THE CAYMAN ISLANDS LATER TODAY... SUMMARY OF 1200 AM CST...0600 UTC...INFORMATION ----------------------------------------------- LOCATION...17.9N 85.7W ABOUT 310 MI...500 KM WSW OF GRAND CAYMAN MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * The Cayman Islands * The Cuban provinces of Camaguey, Ciego de Avila, Sancti Spiritus, Villa Clara, Cienfuegos, and Matanzas. A Tropical Storm Watch is in effect for... * The Cuban provinces of La Habana, Artemisa y Mayabeque, Pinar del Rio, and the Isle of Youth. * Jupiter Inlet southward around the Florida peninsula to Bonita Beach * Lake Okeechobee * Florida Keys * Florida Bay * Northwestern Bahamas, including the Abacos, Andros Island, Berry Islands, Bimini, Eleuthera, Grand Bahama Island, and New Providence. 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. The governments of Nicaragua and Honduras continue to issue warnings for heavy rain and flooding in those countries, and interests in those areas should continue to monitor the depression. Interests elsewhere in Cuba and the Florida peninsula should monitor the progress of this system as additional Tropical Storm Watches could be required for some of these areas later today. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1200 AM CST (0600 UTC), satellite data indicate that the the center of Tropical Depression Eta was located near latitude 17.9 North, longitude 85.7 West. The depression is moving toward the northeast near 10 mph (17 km/h). A northeastward motion at a faster forward speed is expected through early Sunday. A turn toward the north and northwest are expected by Sunday afternoon. On the forecast track, the center of Eta will approach the Cayman Islands later today, be near central Cuba tonight and Sunday, and near the Florida Keys or south Florida late Sunday and Monday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Eta is forecast to become a tropical storm again later today, with further strengthening likely through Sunday. The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Eta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml. RAINFALL: Eta is expected to produce the following rainfall amounts through Wednesday morning: Portions of Central America: An additional 2 to 5 inches (50 to 125 mm), isolated maximum storm totals of 40 inches (1000 mm) in eastern Honduras and eastern Nicaragua. Southeastern Mexico and Jamaica: An additional 2 to 5 inches (50 to 125 mm), isolated maximum storm totals of 15 inches (380 mm). The Cayman Islands into portions of Cuba: 8 to 16 inches (200 to 400 mm), isolated maximum totals of 25 inches (650 mm). The Bahamas and Southern Florida, including the Keys: 5 to 10 inches (125 to 255 mm), isolated maximum totals of 15 inches (380 mm). The threat of life-threatening flooding will continue across portions of Central America, along with landslides in areas of higher terrain. Significant, life-threatening flash and river flooding will be possible in Cuba, along with landslides in areas of higher terrain. Flash and urban flooding will also be possible for the Cayman Islands, Jamaica, southeast Mexico, the Bahamas, and southern Florida. STORM SURGE: A dangerous storm surge will raise water levels by as much as 2 to 4 feet above normal tide levels along the coast of Cuba near and to the east of where the center makes landfall. Near the coast, the surge will be accompanied by large and destructive waves. The combination of a 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... Marco Island, FL to North Miami Beach, FL including Biscayne Bay...2-3 ft Florida Keys...2-3 ft North Miami Beach, FL to Flagler/Volusia County Line, FL...1-2 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous 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: Tropical storm conditions are expected in the Cayman Islands this afternoon and evening, and in the warning area in Cuba tonight and Sunday. Tropical storm conditions are possible in the watch area in Cuba tonight and Sunday. Tropical storm conditions are also possible in the northwestern Bahamas, south Florida, and the Florida Keys within the watch area beginning Sunday. SURF: Swells generated by Eta are expected to spread northeastward and affect the Cayman Islands, Jamaica, the southern coast of Cuba, the northwestern Bahamas, and southern Florida and the Florida Keys during the next couple of days. 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 300 AM CST. $$ Forecaster Cangialosi |
