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| #1024398 (Received by flhurricane at: 12:56 PM 08.Nov.2020) TCPAT4 BULLETIN Tropical Storm Eta Intermediate Advisory Number 33A NWS National Hurricane Center Miami FL AL292020 100 PM EST Sun Nov 08 2020 ...ETA MOVING NORTH-NORTHWESTWARD OVER THE FLORIDA STRAITS... ...EXPECTED TO PRODUCE DANGEROUS STORM SURGE, FLASH FLOODS AND STRONG WINDS OVER PORTIONS OF CUBA, FLORIDA, AND THE FLORIDA KEYS... SUMMARY OF 100 PM EST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...23.5N 79.2W ABOUT 145 MI...235 KM SE OF MARATHON FLORIDA ABOUT 170 MI...275 KM SSE OF MIAMI FLORIDA MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NNW OR 345 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Florida Keys from Ocean Reef to the Dry Tortugas, including Florida Bay A Storm Surge Watch is in effect for... * Florida coast from Golden Beach to Bonita Beach, including Biscayne Bay A Hurricane Warning is in effect for... * Florida Keys from Ocean Reef to the Dry Tortugas, including Florida Bay A Hurricane Watch is in effect for... * Florida coast from Deerfield Beach to Bonita Beach A Tropical Storm Warning is in effect for... * The Cuban provinces of Camaguey, Ciego de Avila, Sancti Spiritus, Villa Clara, Cienfuegos, and Matanzas * Northwestern Bahamas, including the Abacos, Andros Island, Berry Islands, Bimini, Eleuthera, Grand Bahama Island, and New Providence * Florida coast from Brevard/Volusia County line to Englewood including Florida Bay * Lake Okeechobee A Tropical Storm Watch is in effect for... * The Cuban provinces of La Habana, Artemisa, Mayabeque, Pinar del Rio, and the Isle of Youth * Florida coast from north of Englewood to Anna Maria Island. A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. 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, in this case within the next 24 hours. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, generally within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Cuba and the Florida peninsula should monitor the progress of this system as additional Tropical Storm Watches or Warnings could be required for some of these areas on Sunday. 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 100 PM EST (1800 UTC), data from satellites and Cuban radars indicate that the center of Tropical Storm Eta was located near latitude 23.5 North, longitude 79.2 West. Eta is moving toward the north-northwest near 17 mph (28 km/h), and this motion is forecast to continue through this afternoon. A turn toward northwest is expected by this evening, followed by a westward motion by early Monday. On the forecast track, the center of Eta will continue to move over the Florida Straits between Cuba and the Bahamas this afternoon, pass near or over the Florida Keys tonight and early Monday, and be over the southeastern Gulf of Mexico late Monday and Tuesday. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Some strengthening is forecast during the next 48 hours, and Eta is forecast to become a hurricane before it reaches the Florida Keys tonight. Tropical-storm-force winds extend outward up to 125 miles (205 km) from the center. During the past few hours, tropical-storm-force winds gusts have been occurring all along the southeast Florida coast. A gust to 60 mph (97 km/h) was measured by an elevated weather station on Ft. Lauderdale Beach, a gust to 53 mph (85 km/h) was observed at Palm Beach International Airport and at an elevated site at Fowey Rocks, while a gust to 46 mph (74 km/h) was measured at the Boca Raton Airport. North Perry Hollywood Airport also just reported a wind gust of 53 mph (85 km/h). The estimated minimum central pressure is 993 mb (29.33 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 Friday morning: Jamaica: An additional 1 to 3 inches (25 to 75 mm), isolated maximum storm totals of 15 inches (380 mm). Portions of Cuba: an additional 2 to 5 inches (50 to 125 mm), isolated maximum storm totals of 25 inches (635 mm). The Bahamas: an additional 4 to 8 inches (100 to 200 mm), isolated maximum storm totals of 15 inches (380 mm). Portions of the central and southern Florida peninsula, including the Keys: 6 to 12 inches (150 to 300 mm), isolated maximum totals of 18 inches (450 mm). Significant, life-threatening flash and river flooding will be possible in Cuba, along with mudslides in areas of higher terrain. Significant flash and urban flooding will also be possible for Jamaica, the Bahamas, and Southern Florida. Minor river flooding is also possible for Central Florida. 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... Bonita Beach, FL to Golden Beach, FL including Biscayne Bay...2-4 ft Florida Keys from Ocean Reef to the Dry Tortugas including Florida Bay...2-4 ft Golden Beach, FL to Altamaha Sound, GA...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: Hurricane conditions are expected in the Florida Keys by early Monday morning. Tropical storm conditions are expected to continue in the warning areas in Cuba during the next several hours and in the northwestern Bahamas through tonight. Tropical storm conditions are expected to begin in south Florida and the Florida Keys this afternoon or evening, and hurricane conditions are possible in the hurricane watch area in Florida tonight and early Monday. Tropical storm conditions are possible in the Tropical Storm Watch area in Florida by early Monday. TORNADOES: A tornado or two may occur this evening through Monday over south Florida and the Keys. SURF: Swells generated by Eta are expected to affect the north coast of Cuba, the northwestern Bahamas, southern Florida and the Florida Keys during the next couple of days. Swells will gradually subside along the south coast of Cuba, the Cayman Islands and Jamaica later today. 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 400 PM EST. $$ Forecaster Stewart |
