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Tropical Depression Eta Forecast Discussion Number 25
2020-11-06 21:59:38| National Hurricane Center (Atlantic)
Issued at 300 PM CST Fri Nov 06 2020 000 WTNT44 KNHC 062059 TCDAT4 Tropical Depression Eta Discussion Number 25 NWS National Hurricane Center Miami FL AL292020 300 PM CST Fri Nov 06 2020 Reports from an Air Force Reserve Hurricane Hunter aircraft indicate that the center of Eta is elongated east-to-west with multiple vorticity centers present. The central pressure is near 1002 mb, and the maximum flight-level winds were 30-35 kt at 1500 ft. There were a few spot reports of 35-45 kt winds from the Stepped Frequency Microwave Radiometer, but these were in areas of heavy rain and their reliability is suspect. Based on these data, the initial intensity is kept at 30 kt. The aircraft data shows that the center is farther south than previously thought, and the initial motion is an uncertain 040/6 kt. There is no change to the previous track forecast philosophy. A developing mid- to upper-level trough over the Gulf of Mexico is expected to steer Eta northeastward for the next 48 h or so with an increase in forward speed. Between 48-72 h, the trough is forecast to become a closed low near south Florida and western Cuba, causing Eta to turn northwestward around and into the low. After 72 h, the merged system is likely to move slowly westward to northwestward. While the guidance is in good agreement on the synoptic evolution, there remain differences in the track forecast details in terms of both the heading and the forward speed, with the GFS-based guidance tending to be to the east and north of the UKMET/ECMWF/Canadian. In addition, the HWRF/HMON/Canadian are faster than the other guidance. The new forecast track overall is a little slower than the previous track, and due to the initial position the first 36 h have been shifted southward. Eta will move over the warm waters of the northwestern Caribbean during the next 48 h or so, and the upper-level divergence is forecast to be quite strong. This should allow some strengthening, although this is likely to be slowed by 20-30 kt of southwesterly vertical wind shear. The intensity forecast for this part of the cyclone's life is again similar to the previous forecast and lies near the bulk of the intensity guidance. Between 48-72 h , Eta may take on at least some subtropical cyclone characteristics as it merges with the mid- to upper-level low. The HWRF and HMON models still suggest the possibility that a tight inner wind core may develop, however, the guidance has trended weaker since this morning, and the new intensity forecast is above the bulk of the guidance. After 72 h, dry air entrainment is expected to cause the cyclone to weaken. The wind field of Eta is expected to increase in size during the next few days, and the cyclone will likely produce a large area of tropical-storm-force winds on its north side when it is near Cuba, the Florida Keys, and southern Florida. The new forecast track requires a Tropical Storm Warning for portions of Cuba at this time. Watches may be required for portions of south Florida and the Florida Keys tonight. Key Messages: 1. Heavy rainfall is diminishing across portions of Central America, although the threat of life-threatening flooding may continue, along with landslides in areas of higher terrain. Heavy rainfall from Eta will move into the Cayman islands and portions of Cuba, resulting in significant, life-threatening flash flooding and river flooding. Flash flooding and urban flooding is also possible for Jamaica and southeast Mexico. 2. Tropical storm conditions are expected this weekend in portions of the Cayman Islands and Cuba, where a Tropical Storm Warning is in effect. 3. There is an increasing risk of impacts from wind and flash and urban flooding due to heavy rainfall in portions of southern Florida, the Florida Keys, and portions of the Bahamas this weekend and early next week. Tropical Storm or Hurricane Watches will likely be issued for a portion of this area tonight. FORECAST POSITIONS AND MAX WINDS INIT 06/2100Z 17.3N 86.5W 30 KT 35 MPH 12H 07/0600Z 18.2N 84.8W 35 KT 40 MPH 24H 07/1800Z 19.4N 82.5W 40 KT 45 MPH 36H 08/0600Z 20.8N 80.7W 45 KT 50 MPH 48H 08/1800Z 22.5N 80.0W 50 KT 60 MPH...INLAND 60H 09/0600Z 24.2N 80.6W 55 KT 65 MPH...OVER WATER 72H 09/1800Z 24.9N 81.8W 55 KT 65 MPH 96H 10/1800Z 25.0N 84.0W 50 KT 60 MPH 120H 11/1800Z 26.5N 85.5W 50 KT 60 MPH $$ Forecaster Beven
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Tropical Depression Eta Public Advisory Number 25
2020-11-06 21:54:39| National Hurricane Center (Atlantic)
Issued at 300 PM CST Fri Nov 06 2020 000 WTNT34 KNHC 062054 TCPAT4 BULLETIN Tropical Depression Eta Advisory Number 25 NWS National Hurricane Center Miami FL AL292020 300 PM CST Fri Nov 06 2020 ...AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT FINDS THE CENTER OF ETA FARTHER TO THE SOUTH... ...TROPICAL STORM WARNING ISSUED FOR PORTIONS OF CUBA... SUMMARY OF 300 PM CST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...17.3N 86.5W ABOUT 115 MI...180 KM E OF BELIZE CITY ABOUT 375 MI...600 KM WSW OF GRAND CAYMAN MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NE OR 40 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Government of Cuba has issued a 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 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. 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, the northwestern Bahamas, the Florida Keys, and southern Florida should monitor the progress of this system as Tropical Storm or Hurricane Watches could be required for some of these areas tonight or on Saturday. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 300 PM CST (2100 UTC), the center of Tropical Depression Eta was located near latitude 17.3 North, longitude 86.5 West. The depression is moving toward the northeast near 7 mph (11 km/h). A northeastward motion at a faster forward speed is expected trough early Sunday. On the forecast track, the center of Eta will move across the northwestern Caribbean Sea tonight and Friday, approach the Cayman Islands Saturday, and be near central or western Cuba Saturday night and Sunday. Reports from an Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Eta is forecast to become a tropical storm again this tonight, with further strengthening likely through early Sunday. The estimated minimum central pressure from the Hurricane Hunter aircraft data 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 flooding and river flooding is possible in the Cayman Islands and Cuba. Flash flooding and urban flooding is also possible for 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. WIND: Tropical storm conditions are expected in the Cayman Islands late Saturday and Saturday night. Tropical storm conditions are expected in the warning area in Cuba Saturday night and Sunday, and they are possible in the watch area in Cuba Saturday night and Sunday. SURF: Swells generated by Eta are expected to spread northeastward and affect the Cayman Islands, Jamaica, and the southern coast of Cuba 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 intermediate advisory at 600 PM CST. Next complete advisory at 900 PM CST. $$ Forecaster Beven
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Tropical Depression Eta Wind Speed Probabilities Number 25
2020-11-06 21:54:39| National Hurricane Center (Atlantic)
Issued at 2100 UTC FRI NOV 06 2020 000 FONT14 KNHC 062054 PWSAT4 TROPICAL DEPRESSION ETA WIND SPEED PROBABILITIES NUMBER 25 NWS NATIONAL HURRICANE CENTER MIAMI FL AL292020 2100 UTC FRI NOV 06 2020 AT 2100Z THE CENTER OF TROPICAL DEPRESSION ETA WAS LOCATED NEAR LATITUDE 17.3 NORTH...LONGITUDE 86.5 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 30 KTS...35 MPH...55 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN STANDARD TIME (EST)...SUBTRACT 5 HOURS FROM Z TIME CENTRAL STANDARD TIME (CST)...SUBTRACT 6 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 18Z FRI AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 18Z FRI 06Z SAT 18Z SAT 06Z SUN 18Z SUN 18Z MON 18Z TUE PERIODS TO TO TO TO TO TO TO 06Z SAT 18Z SAT 06Z SUN 18Z SUN 18Z MON 18Z TUE 18Z WED FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT KINGS BAY GA 34 X X( X) X( X) X( X) 1( 1) 1( 2) 2( 4) MAYPORT NS FL 34 X X( X) X( X) X( X) 2( 2) 1( 3) 2( 5) JACKSONVILLE 34 X X( X) X( X) X( X) 1( 1) X( 1) 2( 3) GAINESVILLE FL 34 X X( X) X( X) X( X) 2( 2) 1( 3) 1( 4) DAYTONA BEACH 34 X X( X) X( X) X( X) 2( 2) 2( 4) 1( 5) THE VILLAGES 34 X X( X) X( X) X( X) 3( 3) 2( 5) 2( 7) ORLANDO FL 34 X X( X) X( X) X( X) 5( 5) 2( 7) 2( 9) COCOA BEACH FL 34 X X( X) X( X) X( X) 10(10) 3(13) 1(14) PATRICK AFB 34 X X( X) X( X) X( X) 10(10) 3(13) 1(14) FT PIERCE FL 34 X X( X) X( X) 1( 1) 12(13) 4(17) 1(18) W PALM BEACH 34 X X( X) X( X) 1( 1) 20(21) 5(26) 1(27) W PALM BEACH 50 X X( X) X( X) X( X) 4( 4) 1( 5) X( 5) FT LAUDERDALE 34 X X( X) X( X) 2( 2) 28(30) 5(35) 1(36) FT LAUDERDALE 50 X X( X) X( X) X( X) 5( 5) 2( 7) X( 7) FT LAUDERDALE 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) MIAMI FL 34 X X( X) X( X) 1( 1) 20(21) 4(25) 1(26) MIAMI FL 50 X X( X) X( X) X( X) 4( 4) 2( 6) X( 6) HOMESTEAD ARB 34 X X( X) X( X) 2( 2) 21(23) 3(26) 1(27) HOMESTEAD ARB 50 X X( X) X( X) X( X) 5( 5) 1( 6) 1( 7) HOMESTEAD ARB 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) MARATHON FL 34 X X( X) 1( 1) 4( 5) 33(38) 5(43) 2(45) MARATHON FL 50 X X( X) X( X) X( X) 12(12) 2(14) 1(15) MARATHON FL 64 X X( X) X( X) X( X) 3( 3) 1( 4) X( 4) KEY WEST FL 34 X X( X) 1( 1) 2( 3) 27(30) 8(38) 3(41) KEY WEST FL 50 X X( X) X( X) X( X) 9( 9) 4(13) 1(14) KEY WEST FL 64 X X( X) X( X) X( X) 2( 2) 1( 3) 1( 4) NAPLES FL 34 X X( X) X( X) 1( 1) 28(29) 9(38) 2(40) NAPLES FL 50 X X( X) X( X) X( X) 7( 7) 2( 9) 1(10) NAPLES FL 64 X X( X) X( X) X( X) 1( 1) X( 1) 1( 2) FT MYERS FL 34 X X( X) X( X) X( X) 13(13) 6(19) 1(20) FT MYERS FL 50 X X( X) X( X) X( X) 2( 2) 1( 3) 1( 4) VENICE FL 34 X X( X) X( X) X( X) 17(17) 8(25) 4(29) VENICE FL 50 X X( X) X( X) X( X) 3( 3) 2( 5) 1( 6) TAMPA FL 34 X X( X) X( X) X( X) 11(11) 5(16) 4(20) TAMPA FL 50 X X( X) X( X) X( X) 1( 1) 1( 2) 1( 3) CEDAR KEY FL 34 X X( X) X( X) X( X) 5( 5) 4( 9) 4(13) TALLAHASSEE FL 34 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) ST MARKS FL 34 X X( X) X( X) X( X) 1( 1) 1( 2) 2( 4) APALACHICOLA 34 X X( X) X( X) X( X) 2( 2) 3( 5) 6(11) GFMX 290N 850W 34 X X( X) X( X) X( X) 3( 3) 5( 8) 7(15) GFMX 290N 850W 50 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) PANAMA CITY FL 34 X X( X) X( X) X( X) 1( 1) 3( 4) 6(10) DESTIN EXEC AP 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) WHITING FLD FL 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) PENSACOLA FL 34 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) GFMX 290N 870W 34 X X( X) X( X) X( X) 2( 2) 4( 6) 7(13) GFMX 290N 870W 50 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) MOBILE AL 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) GULFPORT MS 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) GFMX 280N 890W 34 X X( X) X( X) X( X) X( X) 3( 3) 6( 9) GFMX 280N 910W 34 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) COZUMEL MX 34 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) GRAND BAHAMA 34 X X( X) X( X) 2( 2) 14(16) 2(18) 1(19) GRAND BAHAMA 50 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3) NEW PROVIDENCE 34 X X( X) X( X) 5( 5) 10(15) 2(17) X(17) ANDROS 34 X X( X) 1( 1) 7( 8) 12(20) 1(21) 1(22) ANDROS 50 X X( X) X( X) 1( 1) 1( 2) 1( 3) X( 3) GREAT EXUMA 34 X X( X) X( X) 4( 4) 3( 7) 1( 8) X( 8) CP SAN ANTONIO 34 X X( X) 1( 1) X( 1) 3( 4) 4( 8) 3(11) HAVANA 34 X X( X) 1( 1) 5( 6) 8(14) 5(19) 3(22) HAVANA 50 X X( X) X( X) X( X) 3( 3) 2( 5) 1( 6) HAVANA 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) ISLE OF PINES 34 X 1( 1) 3( 4) 3( 7) 3(10) 3(13) 1(14) CIENFUEGOS 34 X X( X) 4( 4) 21(25) 6(31) X(31) 1(32) CIENFUEGOS 50 X X( X) X( X) 7( 7) 2( 9) X( 9) X( 9) CIENFUEGOS 64 X X( X) X( X) 1( 1) 1( 2) X( 2) X( 2) CAMAGUEY 34 X X( X) 1( 1) 10(11) 2(13) 1(14) X(14) GRAND CAYMAN 34 X 22(22) 23(45) X(45) 1(46) X(46) X(46) GRAND CAYMAN 50 X 2( 2) 4( 6) X( 6) X( 6) X( 6) X( 6) MONTEGO BAY 34 X X( X) 3( 3) 2( 5) 1( 6) X( 6) X( 6) PENSACOLA NAS 34 X X( X) X( X) X( X) 1( 1) 1( 2) 5( 7) KEESLER AB 34 X X( X) X( X) X( X) X( X) 1( 1) 5( 6) $$ FORECASTER BEVEN
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Tropical Depression Eta Forecast Advisory Number 25
2020-11-06 21:54:07| National Hurricane Center (Atlantic)
Issued at 2100 UTC FRI NOV 06 2020 000 WTNT24 KNHC 062054 TCMAT4 TROPICAL DEPRESSION ETA FORECAST/ADVISORY NUMBER 25 NWS NATIONAL HURRICANE CENTER MIAMI FL AL292020 2100 UTC FRI NOV 06 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF CUBA HAS ISSUED A 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 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. 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...THE NORTHWESTERN BAHAMAS...THE FLORIDA KEYS AND SOUTHERN FLORIDA SHOULD MONITOR THE PROGRESS OF THIS SYSTEM AS TROPICAL STORM OR HURRICANE WATCHES COULD BE REQUIRED FOR SOME OF THESE AREAS TONIGHT OR ON SATURDAY. TROPICAL DEPRESSION CENTER LOCATED NEAR 17.3N 86.5W AT 06/2100Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 40 DEGREES AT 6 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1002 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 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 17.3N 86.5W AT 06/2100Z AT 06/1800Z CENTER WAS LOCATED NEAR 17.1N 87.1W FORECAST VALID 07/0600Z 18.2N 84.8W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 50NE 60SE 0SW 0NW. FORECAST VALID 07/1800Z 19.4N 82.5W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 80SE 40SW 40NW. FORECAST VALID 08/0600Z 20.8N 80.7W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 80NE 80SE 50SW 50NW. FORECAST VALID 08/1800Z 22.5N 80.0W...INLAND MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 50NE 40SE 0SW 0NW. 34 KT...120NE 120SE 60SW 80NW. FORECAST VALID 09/0600Z 24.2N 80.6W...OVER WATER MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 60NE 60SE 30SW 30NW. 34 KT...160NE 150SE 70SW 100NW. FORECAST VALID 09/1800Z 24.9N 81.8W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 60NE 60SE 30SW 30NW. 34 KT...200NE 180SE 90SW 120NW. 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 10/1800Z 25.0N 84.0W MAX WIND 50 KT...GUSTS 60 KT. OUTLOOK VALID 11/1800Z 26.5N 85.5W MAX WIND 50 KT...GUSTS 60 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.3N 86.5W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 07/0000Z NEXT ADVISORY AT 07/0300Z $$ FORECASTER BEVEN
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Tropical Depression Eta Public Advisory Number 24A
2020-11-06 18:52:34| National Hurricane Center (Atlantic)
Issued at 1200 PM CST Fri Nov 06 2020 000 WTNT34 KNHC 061752 TCPAT4 BULLETIN Tropical Depression Eta Intermediate Advisory Number 24A NWS National Hurricane Center Miami FL AL292020 1200 PM CST Fri Nov 06 2020 ...AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT APPROACHING ETA... ...ETA STILL CAUSING HEAVY RAINS AND LIFE-THREATENING FLOODING OVER PORTIONS OF CENTRAL AMERICA... SUMMARY OF 1200 PM CST...1800 UTC...INFORMATION ----------------------------------------------- LOCATION...17.9N 86.9W ABOUT 95 MI...155 KM ENE OF BELIZE CITY ABOUT 375 MI...605 KM WSW OF GRAND CAYMAN MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NNE OR 30 DEGREES AT 6 MPH...10 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 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 A Tropical Storm Watch is in effect for... * The Cuban provinces of Camaguey, Ciego de Avila, Sancti Spiritus, Villa Clara, Cienfuegos, Matanzas, La Habana, Ciudad de la Habana, Pinar del Rio and the Isle of Youth. 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, the northwestern Bahamas, the Florida Keys and southern Florida should monitor the progress of this system as Tropical Storm or Hurricane 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 PM CST (1800 UTC), the center of Tropical Depression Eta was located near latitude 17.9 North, longitude 86.9 West. The depression is moving toward the north-northeast near 6 mph (10 km/h). A turn toward the northeast and a faster forward speed are expected this afternoon, with this motion continuing through early Sunday. On the forecast track, the center of Eta will move across the northwestern Caribbean Sea today, approach the Cayman Islands Saturday, and be near central or western Cuba Saturday night and Sunday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Eta is forecast to become a tropical storm again this afternoon or tonight, with further strengthening likely through early Sunday. The estimated minimum central pressure is 1004 mb (29.65 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 5 to 10 inches (125 to 255 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: 10 to 20 inches (255 to 510 mm), isolated maximum totals of 30 inches (760 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). This rainfall will continue catastrophic, life-threatening flash flooding and river flooding, along with landslides in areas of higher terrain of Central America. Significant, life-threatening flash flooding and river flooding is possible in the Cayman Islands and Cuba. Flash flooding and river flooding is expected for Jamaica and southeast Mexico. Flash and urban flooding is possible across the Bahamas and Southern Florida. WIND: Tropical storm conditions are expected in the Cayman Islands late Saturday and Saturday night. Tropical storm conditions are possible in the watch area in Cuba Saturday night and Sunday. SURF: Swells generated by Eta are expected to spread northeastward and affect the Cayman Islands, Jamaica, and the southern coast of Cuba 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 PM CST. $$ Forecaster Beven
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