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Tropical Storm Eta Forecast Discussion Number 35
2020-11-09 03:54:56| National Hurricane Center (Atlantic)
Issued at 1000 PM EST Sun Nov 08 2020 000 WTNT44 KNHC 090254 TCDAT4 Tropical Storm Eta Discussion Number 35 NWS National Hurricane Center Miami FL AL292020 1000 PM EST Sun Nov 08 2020 Although deep convection has waned near the center of Eta since this afternoon, radar imagery continues to show a ring of low-topped convection around the center, with some deep convection returning over the northeastern portion of the circulation. Doppler radar velocities of 64-68 kt around 5000 ft, and recent NOAA reconnaissance aircraft observations support maintaining the 55 kt initial intensity. The aircraft reported a minimum pressure of around 993 mb. Since Eta has a fairly large radius of maximum winds and a dry slot that has wrapped into the inner core, it appears that any short-term strengthening should be slow to occur. As a result, the new NHC intensity forecast calls for a little less strengthening until Eta moves into the southeastern Gulf of Mexico in about 24 hours. Regardless of whether Eta becomes a hurricane near the Florida Keys, there is little difference in impacts between a 55-to-60-kt tropical storm and a 65-kt hurricane. After 24 hours, Eta is forecast to move over warmer sea surface temperatures in the southeastern Gulf of Mexico and the vertical shear is forecast to decrease. This is expected to allow for some strengthening and Eta is forecast re-gain hurricane strengthen by Tuesday. Gradual weakening is predicted between 72-120 hours due to increasing southwesterly shear and the entrainment of dry mid-level air. The updated NHC intensity forecast is near the SHIPS/LGEM models during the first couple of days, and in good agreement with the HFIP corrected consensus model thereafter. Eta has turned northwestward this evening around the north side of a cut-off low located just south of western Cuba. The tropical cyclone should turn west-northwestward to westward overnight, and a southwestward motion is expected on Tuesday as Eta pivots around the upper-low. In 36-48 h, Eta is expected to slow down and possibly stall over the southeastern Gulf of Mexico as the steering currents weakening. In about 3 days, Eta should begin moving northward between a mid-level ridge over the western Atlantic and a broad trough over the central United States. The models that maintain Eta has a deeper system show a faster northeastward motion late in the period, whereas models that weaken Eta slow its northward progression by day 5. The NHC track forecast lies near the model consensus at 96 and 120 h, and is similar to the previous advisory. Key Messages: 1. Heavy rainfall from Eta will continue across portions of Cuba, Jamaica, the Bahamas, and southern Florida and spread north into central Florida. Life-threatening flash flooding is possible across the urban areas of southeast Florida. Significant, life-threatening flash flooding and river flooding is possible in Cuba, and significant flash and urban flooding are possible for Jamaica, the Bahamas and the remainder of southern Florida, along with potential minor river flooding in central Florida. 2. Hurricane conditions are expected tonight and early Monday across portions of the Florida Keys, and are possible across portions of southern Florida. Tropical storm conditions will extend well away from Eta's center across the southern and central portions of the Florida peninsula. 3. There is a danger of life-threatening storm surge in portions of the Florida Keys. Life-threatening storm surge is possible along portions of the southern coast of the Florida peninsula. Residents in these areas should follow any advice given by local officials. 4. Eta is forecast to approach the Florida Gulf Coast later this week as a tropical storm, and could bring impacts from rain, wind, and storm surge. Interests in this area should monitor the progress of Eta and updates to the forecast this week. FORECAST POSITIONS AND MAX WINDS INIT 09/0300Z 24.6N 80.5W 55 KT 65 MPH 12H 09/1200Z 24.9N 82.6W 60 KT 70 MPH 24H 10/0000Z 24.2N 84.3W 60 KT 70 MPH 36H 10/1200Z 23.6N 85.1W 65 KT 75 MPH 48H 11/0000Z 24.2N 85.1W 65 KT 75 MPH 60H 11/1200Z 25.5N 84.9W 65 KT 75 MPH 72H 12/0000Z 26.6N 84.6W 60 KT 70 MPH 96H 13/0000Z 28.2N 83.6W 55 KT 65 MPH 120H 14/0000Z 30.0N 82.0W 45 KT 50 MPH...INLAND $$ Forecaster Brown
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Tropical Storm Eta Public Advisory Number 35
2020-11-09 03:54:27| National Hurricane Center (Atlantic)
Issued at 1000 PM EST Sun Nov 08 2020 073 WTNT34 KNHC 090254 TCPAT4 BULLETIN Tropical Storm Eta Advisory Number 35 NWS National Hurricane Center Miami FL AL292020 1000 PM EST Sun Nov 08 2020 ...ETA BRINGING HEAVY RAINFALL AND LIFE-THREATENING FLASH FLOODING TO PORTIONS OF SOUTHEASTERN FLORIDA... ...STRONG WINDS AND DANGEROUS STORM SURGE ARE ALSO OCCURRING OVER PORTIONS OF SOUTH FLORIDA AND THE FLORIDA KEYS... SUMMARY OF 1000 PM EST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...24.6N 80.5W ABOUT 40 MI...60 KM E OF MARATHON FLORIDA ABOUT 80 MI...130 KM E OF KEY WEST FLORIDA MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NW OR 305 DEGREES AT 14 MPH...22 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 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 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 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 1000 PM EST (0300 UTC), the center of Tropical Storm Eta was located near latitude 24.6 North, longitude 80.5 West. Eta is moving toward the northwest near 14 mph (22 km/h). A west-northwestward to westward motion is expected overnight, followed by a west- southwestward motion on Monday and Monday night with some reduction in forward speed. Little overall motion is expected on Tuesday. On the forecast track, the center of Eta will pass near or over the Florida Keys tonight and early Monday, 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 are 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. A WeatherFlow station at Carysfort Reef Light in the Florida Keys recently reported a sustained wind of 57 mph (91 km/h) with a gust to 72 mph (114 km/h). An elevated station a Port Everglades recently reported a wind gust of 66 mph (106 km/h). Farther north a sustained wind of 42 mph (68 km/h) with a gust to 54 mph (87 km/h) was reported at the Lake Worth Pier. 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: 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 spread across the Florida Keys tonight with hurricane conditions expected in a portion of the Florida Keys by early Monday morning. Tropical storm conditions are expected to continue in the warning areas in the northwestern Bahamas and the Florida peninsula through early Monday. 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 Monday. TORNADOES: A few tornadoes are possible through Monday 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. 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 intermediate advisory at 100 AM EST. Next complete advisory at 400 AM EST. $$ Forecaster Brown/Beven/Papin
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Tropical Storm Eta Forecast Advisory Number 35
2020-11-09 03:53:55| National Hurricane Center (Atlantic)
Issued at 0300 UTC MON NOV 09 2020 000 WTNT24 KNHC 090253 TCMAT4 TROPICAL STORM ETA FORECAST/ADVISORY NUMBER 35 NWS NATIONAL HURRICANE CENTER MIAMI FL AL292020 0300 UTC MON NOV 09 2020 CHANGES IN WATCHES AND WARNINGS 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 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 THE FLORIDA PENINSULA SHOULD MONITOR THE PROGRESS OF ETA. TROPICAL STORM CENTER LOCATED NEAR 24.6N 80.5W AT 09/0300Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 993 MB MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT. 50 KT....... 40NE 40SE 0SW 30NW. 34 KT.......270NE 100SE 30SW 140NW. 12 FT SEAS.. 60NE 60SE 60SW 30NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 24.6N 80.5W AT 09/0300Z AT 09/0000Z CENTER WAS LOCATED NEAR 24.5N 80.1W FORECAST VALID 09/1200Z 24.9N 82.6W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 30SE 20SW 30NW. 34 KT...240NE 100SE 40SW 120NW. FORECAST VALID 10/0000Z 24.2N 84.3W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...180NE 90SE 60SW 90NW. FORECAST VALID 10/1200Z 23.6N 85.1W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 25NE 25SE 0SW 20NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...120NE 90SE 70SW 90NW. FORECAST VALID 11/0000Z 24.2N 85.1W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 25NE 25SE 0SW 25NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...120NE 90SE 70SW 90NW. FORECAST VALID 11/1200Z 25.5N 84.9W MAX WIND 65 KT...GUSTS 80 KT. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...110NE 90SE 70SW 90NW. FORECAST VALID 12/0000Z 26.6N 84.6W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...110NE 90SE 70SW 90NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 13/0000Z 28.2N 83.6W MAX WIND 55 KT...GUSTS 65 KT. OUTLOOK VALID 14/0000Z 30.0N 82.0W...INLAND MAX WIND 45 KT...GUSTS 55 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 24.6N 80.5W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 09/0600Z NEXT ADVISORY AT 09/0900Z $$ FORECASTER BROWN
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Tropical Storm Eta Public Advisory Number 34A
2020-11-09 00:50:25| National Hurricane Center (Atlantic)
Issued at 700 PM EST Sun Nov 08 2020 000 WTNT34 KNHC 082350 TCPAT4 BULLETIN Tropical Storm Eta Intermediate Advisory Number 34A NWS National Hurricane Center Miami FL AL292020 700 PM EST Sun Nov 08 2020 ...TROPICAL-STORM-FORCE WINDS, A DANGEROUS STORM SURGE, AND HEAVY RAINFALL AND FLASH FLOODING SPREADING OVER SOUTH FLORIDA AND THE KEYS... SUMMARY OF 700 PM EST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...24.5N 80.1W ABOUT 65 MI...105 KM E OF MARATHON FLORIDA ABOUT 90 MI...145 KM S OF MIAMI FLORIDA MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NW OR 320 DEGREES AT 14 MPH...22 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 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 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 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 700 PM EST (0000 UTC), the center of Tropical Storm Eta was located by National Weather Service Doppler radar near latitude 24.5 North, longitude 80.1 West. Eta is moving toward the northwest near 14 mph (22 km/h). This general motion is expected to continue during the next few hours, followed by a turn toward the west later tonight. A slower west-southwestward motion is forecast Monday night and Tuesday. On the forecast track, the center of Eta will 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 day or so and Eta is forecast to become a hurricane as it moves near or over the Florida Keys tonight and early Monday. Tropical-storm-force winds extend outward up to 175 miles (280 km) from the center. Sustained tropical-storm-force winds have been reported along much of the southeast Florida coast during the past few hours. A National Ocean Service station on Virginia Key recently reported sustained winds of 36 mph (58 km/h) with a gust to 45 mph (72 km/h). A WeatherFlow station at Morningside Park just north of downtown Miami recently reported sustained winds of 40 mph (65 km/h) and a gust to 51 mph (82 km/h). An elevated site at Port Everglades reported a 50 mph (80 km/h) sustained wind and a 65 mph (105 km/h) gust within the past hour or so. Farther north, a WeatherFlow site near Juno Beach reported a wind gust of 49 mph (79 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: storm totals of 6 to 12 inches (150 to 300 mm), isolated maximum storm totals of 18 inches (450 mm). Significant, life-threatening flash and river flooding will be possible in Cuba, along with landslides 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 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 spread across the Florida Keys tonight with hurricane conditions expected in a portion of the Florida Keys by early Monday morning. Tropical storm conditions are expected to continue in the warning areas in the northwestern Bahamas and the Florida peninsula through early Monday. 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 Monday. TORNADOES: A few tornadoes are possible 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 1000 PM EST. $$ Forecaster Brown
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Tropical Storm Eta Forecast Advisory Number 34
2020-11-08 21:58:48| National Hurricane Center (Atlantic)
Issued at 2100 UTC SUN NOV 08 2020 150 WTNT24 KNHC 082058 CCA TCMAT4 TROPICAL STORM ETA FORECAST/ADVISORY NUMBER 34...CORRECTED NWS NATIONAL HURRICANE CENTER MIAMI FL AL292020 2100 UTC SUN NOV 08 2020 CORRECTED TO SHOW DISCONTINUED WARNINGS FOR CUBA CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE HURRICANE WATCH HAS BEEN DISCONTINUED FOR THE EAST COAST OF FLORIDA NORTH OF GOLDEN BEACH. THE STORM SURGE WATCH NORTH OF CARD SOUND BRIDGE TO GOLDEN BEACH, FL INCLUDING BISCAYNE BAY HAS BEEN DISCONTINUED. THE GOVERNMENT OF CUBA HAS DISCONTINUED THE TROPICAL STORM WARNING FOR THE PROVINCES OF CAMAGUEY, CIEGO DE AVILA, SANCTI SPIRITUS, VILLA CLARA, CIENFUEGOS, AND MATANZAS 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 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. TROPICAL STORM CENTER LOCATED NEAR 23.9N 79.5W AT 08/2100Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 325 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 993 MB MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT. 50 KT....... 40NE 40SE 0SW 30NW. 34 KT.......150NE 100SE 30SW 140NW. 12 FT SEAS.. 60NE 90SE 60SW 60NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 23.9N 79.5W AT 08/2100Z AT 08/1800Z CENTER WAS LOCATED NEAR 23.5N 79.2W FORECAST VALID 09/0600Z 24.7N 81.1W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 50NE 30SE 20SW 30NW. 34 KT...170NE 100SE 50SW 120NW. FORECAST VALID 09/1800Z 24.6N 83.4W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 25NE 0SE 0SW 25NW. 50 KT... 60NE 50SE 30SW 40NW. 34 KT...240NE 100SE 70SW 150NW. FORECAST VALID 10/0600Z 23.6N 84.8W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 25NE 0SE 0SW 25NW. 50 KT... 60NE 50SE 30SW 40NW. 34 KT...180NE 90SE 70SW 120NW. FORECAST VALID 10/1800Z 24.0N 85.1W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 25NE 25SE 0SW 25NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...120NE 90SE 70SW 90NW. FORECAST VALID 11/0600Z 25.1N 85.0W MAX WIND 65 KT...GUSTS 80 KT. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...120NE 90SE 70SW 90NW. FORECAST VALID 11/1800Z 25.8N 84.8W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...120NE 90SE 70SW 90NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 12/1800Z 27.1N 84.0W MAX WIND 55 KT...GUSTS 65 KT. OUTLOOK VALID 13/1800Z 29.0N 82.8W MAX WIND 50 KT...GUSTS 60 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.9N 79.5W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 09/0000Z NEXT ADVISORY AT 09/0300Z $$ FORECASTER STEWART
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