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Tropical Storm Eta Public Advisory Number 35A
2020-11-09 06:54:33| National Hurricane Center (Atlantic)
Issued at 100 AM EST Mon Nov 09 2020 000 WTNT34 KNHC 090554 TCPAT4 BULLETIN Tropical Storm Eta Intermediate Advisory Number 35A NWS National Hurricane Center Miami FL AL292020 100 AM EST Mon Nov 09 2020 ...ETA IS VERY NEAR SOUTH FLORIDA... ...STRONG WINDS, HEAVY RAINS, AND DANGEROUS STORM SURGE OCCURRING OVER PORTIONS OF SOUTH FLORIDA AND THE FLORIDA KEYS... SUMMARY OF 100 AM EST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...25.0N 81.3W ABOUT 25 MI...40 KM NW OF MARATHON FLORIDA ABOUT 40 MI...80 KM NE OF KEY WEST FLORIDA MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...992 MB...29.29 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 Bonita Beach to Card Sound Bridge 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 Golden Beach to Bonita Beach A Tropical Storm Warning is in effect for... * 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 * 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 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 the Florida peninsula should monitor the progress of Eta. 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 AM EST (0600 UTC), the center of Tropical Storm Eta was located near latitude 25.0 North, longitude 81.3 West. Eta is moving toward the west-northwest near 14 mph (22 km/h). A west to west- southwest motion with some reduction in forward speed is expected later today and tonight. Little overall motion is expected on Tuesday. On the forecast track, the center of Eta will pass near or over the Florida Keys and extreme south Florida during the next few hours, and be over the southeastern Gulf of Mexico late Monday and Tuesday. Data from a NOAA Hurricane Hunter aircraft and National Weather Service Doppler radar indicate that the maximum sustained winds remain near 65 mph (100 km/h) with higher gusts. Some strengthening is forecast during the next day or so, and Eta is forecast to become a hurricane when it moves over the southeastern Gulf of Mexico. Tropical-storm-force winds extend outward up to 310 miles (500 km) from the center. An observation in Everglades National Park recently reported a wind gust of 61 mph (98 km/h). The estimated minimum central pressure based on surface observations and NOAA Hurricane Hunter data is 992 mb (29.29 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: Portions of the central and southern Florida peninsula, including the Keys: storm totals of 6 to 12 inches (150 to 300 mm), isolated maximum storm totals of 18 inches (450 mm). The Bahamas: an additional 4 to 8 inches (100 to 200 mm), isolated maximum storm totals of 15 inches (380 mm). 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 3 to 5 inches (75 to 125 mm), isolated maximum storm totals of 25 inches (635 mm). Significant, life-threatening flash and river flooding will be possible in Cuba, along with landslides in areas of higher terrain. Life-threatening flash flooding will be possible across the urban areas of southeast Florida. Significant flash and urban flooding will also be possible for Jamaica, the Bahamas, and the remainder of 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 Card Sound Bridge...2-4 ft Florida Keys from Ocean Reef to the Dry Tortugas including Florida Bay...2-4 ft Card Sound Bridge to Golden Beach, FL including Biscayne Bay...2-3 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: Tropical storm conditions will continue across the Florida Keys this morning with hurricane conditions expected in a portion of the Florida Keys during the next few hours. Tropical storm conditions are expected to continue in the warning areas in the northwestern Bahamas and the Florida peninsula through this morning. Hurricane conditions are possible in the hurricane watch area in Florida this morning. Tropical storm conditions are possible in the Tropical Storm Watch area in Florida later today. TORNADOES: A few tornadoes are possible today across 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. 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 AM EST. $$ Forecaster Cangialosi
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