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Tropical Storm Elsa Wind Speed Probabilities Number 17
2021-07-04 16:54:44| National Hurricane Center (Atlantic)
Issued at 1500 UTC SUN JUL 04 2021 000 FONT15 KNHC 041454 PWSAT5 TROPICAL STORM ELSA WIND SPEED PROBABILITIES NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL AL052021 1500 UTC SUN JUL 04 2021 AT 1500Z THE CENTER OF TROPICAL STORM ELSA WAS LOCATED NEAR LATITUDE 18.7 NORTH...LONGITUDE 76.8 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 50 KTS...60 MPH...95 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 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 12Z SUN 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 12Z SUN 00Z MON 12Z MON 00Z TUE 12Z TUE 12Z WED 12Z THU PERIODS TO TO TO TO TO TO TO 00Z MON 12Z MON 00Z TUE 12Z TUE 12Z WED 12Z THU 12Z FRI FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT NANTUCKET MA 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) MONTAUK POINT 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) NYC JFK AIRPRT 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) ATLANTIC CITY 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) DOVER DE 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) ANNAPOLIS MD 34 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) CAPE HENLOPEN 34 X X( X) X( X) X( X) X( X) 1( 1) 5( 6) OCEAN CITY MD 34 X X( X) X( X) X( X) X( X) 1( 1) 6( 7) PAX RIVER NAS 34 X X( X) X( X) X( X) X( X) 1( 1) 4( 5) WALLOPS CDA 34 X X( X) X( X) X( X) X( X) 1( 1) 7( 8) RICHMOND VA 34 X X( X) X( X) X( X) X( X) 1( 1) 5( 6) DANVILLE VA 34 X X( X) X( X) X( X) X( X) 3( 3) 2( 5) NORFOLK NAS 34 X X( X) X( X) X( X) X( X) 2( 2) 7( 9) NORFOLK VA 34 X X( X) X( X) X( X) X( X) 2( 2) 7( 9) OCEANA NAS VA 34 X X( X) X( X) X( X) X( X) 3( 3) 9(12) ELIZABETH CTY 34 X X( X) X( X) X( X) X( X) 3( 3) 8(11) GREENSBORO NC 34 X X( X) X( X) X( X) X( X) 4( 4) 1( 5) RALEIGH NC 34 X X( X) X( X) X( X) X( X) 6( 6) 3( 9) ROCKY MT NC 34 X X( X) X( X) X( X) X( X) 6( 6) 5(11) CAPE HATTERAS 34 X X( X) X( X) X( X) X( X) 4( 4) 11(15) CAPE HATTERAS 50 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) FAYETTEVILLE 34 X X( X) X( X) X( X) X( X) 9( 9) 4(13) CHARLOTTE NC 34 X X( X) X( X) X( X) X( X) 5( 5) 2( 7) CHERRY PT NC 34 X X( X) X( X) X( X) X( X) 6( 6) 8(14) NEW RIVER NC 34 X X( X) X( X) X( X) X( X) 8( 8) 9(17) NEW RIVER NC 50 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) MOREHEAD CITY 34 X X( X) X( X) X( X) X( X) 8( 8) 9(17) MOREHEAD CITY 50 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) SURF CITY NC 34 X X( X) X( X) X( X) X( X) 10(10) 7(17) SURF CITY NC 50 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) WILMINGTON NC 34 X X( X) X( X) X( X) X( X) 10(10) 5(15) BALD HEAD ISL 34 X X( X) X( X) X( X) X( X) 13(13) 6(19) BALD HEAD ISL 50 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) FLORENCE SC 34 X X( X) X( X) X( X) X( X) 12(12) 3(15) FLORENCE SC 50 X X( X) X( X) X( X) X( X) 3( 3) X( 3) COLUMBIA SC 34 X X( X) X( X) X( X) X( X) 13(13) 1(14) LITTLE RIVER 34 X X( X) X( X) X( X) X( X) 15(15) 4(19) LITTLE RIVER 50 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) MYRTLE BEACH 34 X X( X) X( X) X( X) X( X) 15(15) 4(19) MYRTLE BEACH 50 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) GEORGETOWN SC 34 X X( X) X( X) X( X) X( X) 14(14) 2(16) CHARLESTON SC 34 X X( X) X( X) X( X) 1( 1) 19(20) 2(22) CHARLESTON SC 50 X X( X) X( X) X( X) X( X) 3( 3) X( 3) BEAUFORT MCAS 34 X X( X) X( X) X( X) 2( 2) 20(22) 1(23) BEAUFORT MCAS 50 X X( X) X( X) X( X) X( X) 3( 3) X( 3) ATLANTA GA 34 X X( X) X( X) X( X) X( X) 4( 4) X( 4) AUGUSTA GA 34 X X( X) X( X) X( X) 1( 1) 13(14) X(14) SAVANNAH GA 34 X X( X) X( X) X( X) 2( 2) 17(19) 1(20) SAVANNAH GA 50 X X( X) X( X) X( X) X( X) 3( 3) X( 3) KINGS BAY GA 34 X X( X) X( X) X( X) 8( 8) 17(25) X(25) KINGS BAY GA 50 X X( X) X( X) X( X) 1( 1) 3( 4) 1( 5) WAYCROSS GA 34 X X( X) X( X) X( X) 5( 5) 17(22) X(22) WAYCROSS GA 50 X X( X) X( X) X( X) X( X) 4( 4) X( 4) MAYPORT NS FL 34 X X( X) X( X) X( X) 9( 9) 16(25) 1(26) MAYPORT NS FL 50 X X( X) X( X) X( X) 1( 1) 3( 4) X( 4) JACKSONVILLE 34 X X( X) X( X) X( X) 7( 7) 16(23) 1(24) JACKSONVILLE 50 X X( X) X( X) X( X) 1( 1) 2( 3) 1( 4) GAINESVILLE FL 34 X X( X) X( X) X( X) 13(13) 13(26) 1(27) GAINESVILLE FL 50 X X( X) X( X) X( X) 2( 2) 3( 5) X( 5) DAYTONA BEACH 34 X X( X) X( X) 1( 1) 10(11) 9(20) X(20) DAYTONA BEACH 50 X X( X) X( X) X( X) 1( 1) 2( 3) X( 3) THE VILLAGES 34 X X( X) X( X) 1( 1) 15(16) 10(26) X(26) THE VILLAGES 50 X X( X) X( X) X( X) 3( 3) 2( 5) X( 5) ORLANDO FL 34 X X( X) X( X) 1( 1) 13(14) 6(20) X(20) ORLANDO FL 50 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3) COCOA BEACH FL 34 X X( X) 1( 1) 4( 5) 11(16) 3(19) X(19) PATRICK AFB 34 X X( X) 1( 1) 4( 5) 11(16) 3(19) X(19) FT PIERCE FL 34 X X( X) 2( 2) 4( 6) 9(15) 2(17) X(17) W PALM BEACH 34 X 2( 2) 3( 5) 5(10) 6(16) 1(17) X(17) FT LAUDERDALE 34 X 3( 3) 5( 8) 7(15) 4(19) 1(20) X(20) MIAMI FL 34 X 3( 3) 3( 6) 3( 9) 4(13) 1(14) X(14) HOMESTEAD ARB 34 X 3( 3) 5( 8) 4(12) 3(15) X(15) X(15) MARATHON FL 34 X 7( 7) 29(36) 15(51) 2(53) X(53) X(53) MARATHON FL 50 X X( X) 6( 6) 7(13) X(13) X(13) X(13) MARATHON FL 64 X X( X) 1( 1) 1( 2) X( 2) X( 2) X( 2) KEY WEST FL 34 X 6( 6) 33(39) 21(60) 4(64) X(64) X(64) KEY WEST FL 50 X X( X) 9( 9) 13(22) 1(23) X(23) X(23) KEY WEST FL 64 X X( X) 1( 1) 2( 3) X( 3) X( 3) X( 3) NAPLES FL 34 X 2( 2) 7( 9) 21(30) 14(44) 1(45) X(45) NAPLES FL 50 X X( X) X( X) 4( 4) 6(10) X(10) X(10) NAPLES FL 64 X X( X) X( X) X( X) 2( 2) X( 2) X( 2) FT MYERS FL 34 X 1( 1) 2( 3) 7(10) 14(24) 1(25) X(25) FT MYERS FL 50 X X( X) X( X) 1( 1) 3( 4) X( 4) X( 4) VENICE FL 34 X X( X) 3( 3) 12(15) 27(42) 1(43) X(43) VENICE FL 50 X X( X) X( X) 1( 1) 11(12) X(12) X(12) VENICE FL 64 X X( X) X( X) X( X) 2( 2) X( 2) X( 2) TAMPA FL 34 X X( X) 2( 2) 5( 7) 28(35) 3(38) 1(39) TAMPA FL 50 X X( X) X( X) X( X) 7( 7) 2( 9) X( 9) TAMPA FL 64 X X( X) X( X) X( X) 2( 2) X( 2) X( 2) CEDAR KEY FL 34 X X( X) X( X) 3( 3) 21(24) 9(33) X(33) CEDAR KEY FL 50 X X( X) X( X) X( X) 5( 5) 2( 7) X( 7) CEDAR KEY FL 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) TALLAHASSEE FL 34 X X( X) X( X) X( X) 5( 5) 9(14) X(14) TALLAHASSEE FL 50 X X( X) X( X) X( X) 1( 1) 2( 3) X( 3) ST MARKS FL 34 X X( X) X( X) X( X) 7( 7) 9(16) X(16) ST MARKS FL 50 X X( X) X( X) X( X) 1( 1) 2( 3) X( 3) APALACHICOLA 34 X X( X) X( X) 1( 1) 7( 8) 4(12) X(12) GFMX 290N 850W 34 X X( X) X( X) 2( 2) 11(13) 2(15) X(15) GFMX 290N 850W 50 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3) PANAMA CITY FL 34 X X( X) X( X) X( X) 5( 5) 3( 8) X( 8) DESTIN EXEC AP 34 X X( X) X( X) X( X) 2( 2) 2( 4) X( 4) COLUMBUS GA 34 X X( X) X( X) X( X) 1( 1) 4( 5) X( 5) GFMX 290N 870W 34 X X( X) X( X) X( X) 3( 3) 1( 4) X( 4) GRAND BAHAMA 34 X 2( 2) 2( 4) 3( 7) 3(10) X(10) X(10) NEW PROVIDENCE 34 X 5( 5) 2( 7) 1( 8) 1( 9) X( 9) X( 9) ANDROS 34 2 6( 8) 2(10) 2(12) X(12) X(12) X(12) GREAT EXUMA 34 2 3( 5) X( 5) 1( 6) X( 6) X( 6) X( 6) CP SAN ANTONIO 34 X 1( 1) 1( 2) 1( 3) 1( 4) X( 4) X( 4) HAVANA 34 1 8( 9) 25(34) 6(40) 1(41) 1(42) X(42) HAVANA 50 X X( X) 5( 5) 3( 8) 1( 9) X( 9) X( 9) HAVANA 64 X X( X) 1( 1) X( 1) X( 1) X( 1) X( 1) ISLE OF PINES 34 1 3( 4) 5( 9) 1(10) 2(12) X(12) X(12) CIENFUEGOS 34 X 69(69) 9(78) X(78) X(78) X(78) X(78) CIENFUEGOS 50 X 27(27) 9(36) X(36) X(36) X(36) X(36) CIENFUEGOS 64 X 4( 4) 2( 6) X( 6) X( 6) X( 6) X( 6) CAMAGUEY 34 39 21(60) X(60) X(60) X(60) X(60) X(60) CAMAGUEY 50 1 8( 9) X( 9) X( 9) X( 9) X( 9) X( 9) GRAND CAYMAN 34 1 2( 3) X( 3) 1( 4) X( 4) X( 4) X( 4) MONTEGO BAY 34 15 1(16) 1(17) X(17) X(17) X(17) X(17) KINGSTON 34 22 X(22) X(22) X(22) X(22) X(22) X(22) $$ FORECASTER PASCH
Tropical Storm Elsa Public Advisory Number 17
2021-07-04 16:54:44| National Hurricane Center (Atlantic)
Issued at 1100 AM EDT Sun Jul 04 2021 000 WTNT35 KNHC 041454 TCPAT5 BULLETIN Tropical Storm Elsa Advisory Number 17 NWS National Hurricane Center Miami FL AL052021 1100 AM EDT Sun Jul 04 2021 ...TROPICAL STORM WARNING ISSUED FOR PORTIONS OF THE FLORIDA KEYS... SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...18.7N 76.8W ABOUT 50 MI...80 KM N OF KINGSTON JAMAICA MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: A Tropical Storm Warning has been issued for the Florida Keys from Craig Key westward to the Dry Tortugas. A Tropical Storm Watch has been issued for the Florida Keys from Craig Key eastward to Ocean Reef, including Florida Bay. A Tropical Storm Watch has been issued for the southwest coast of Florida from Flamingo northward to Bonita Beach. The Tropical Storm Warning for Haiti has been discontinued. The government of Cuba has issued a Tropical Storm Warning for the provinces of Matanzas, Mayabeque, and Havana. The government of Cuba has issued a Tropical Storm Watch for the province of Artemisa. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * The Cuban provinces of Camaguey, Granma, Guantanamo, Holguin, Las Tunas, Santiago de Cuba, Ciego de Avila, Sancti Spiritus, Villa Clara, Cienfuegos, Matanzas, Mayabeque, and Havana * Jamaica * The Florida Keys from Craig Key westward to the Dry Tortugas A Hurricane Watch is in effect for... * The Cuban provinces of Camaguey, Granma, Guantanamo, Holguin, Las Tunas, and Santiago de Cuba A Tropical Storm Watch is in effect for... * Cayman Brac and Little Cayman * The Cuban province of Artemisa * The Florida Keys from east of Craig Key to Ocean Reef * Florida Bay * The southwest coast of Florida from Flamingo to Bonita Beach A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area. Interests elsewhere in the Florida peninsula should monitor the progress of Elsa. Additional watches and warnings will likely be required later today. 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 1100 AM EDT (1500 UTC), the center of Tropical Storm Elsa was located near latitude 18.7 North, longitude 76.8 West. Elsa is moving toward the west-northwest near 13 mph (20 km/h). A turn toward the northwest is expected today or tonight. On the forecast track, Elsa will continue to move near Jamaica and portions of eastern Cuba today, and approach central Cuba tonight and early Monday. Elsa is expected to move across central and western Cuba and head toward the Florida Straits on Monday and pass near the Florida Keys late Monday. Elsa is then forecast to move near or over portions of the west coast of Florida on Tuesday and Wednesday. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Some strengthening is possible today and tonight as Elsa approaches the south-central coast of Cuba. However, gradual weakening is forecast to occur on Monday when Elsa moves across Cuba. After Elsa emerges over the Florida Straits and the southeastern Gulf of Mexico, some slight restrengthening is possible. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure is 1009 mb (29.80 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Elsa can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45 KNHC and on the web at www.hurricanes.gov/graphics_at5.shtml?key_messages. WIND: Tropical storm conditions are expected in portions of Jamaica today. Tropical storm conditions are expected and hurricane conditions are possible in portions of eastern and central Cuba later today and tonight. Tropical storm conditions are expected in the warning area in the Florida Keys by late Monday. Tropical storm conditions are possible in the watch areas in the Cayman Islands by tonight, and in the upper Florida Keys and the southwest coast of Florida by Monday night. STORM SURGE: A storm surge will raise water levels above normal tide levels by as much as the following amounts in areas of onshore flow within the hurricane watch and warning areas... Southern coast of Cuba...3 to 5 feet 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... Bonita Beach, FL to Flamingo, FL...1 to 3 ft Ocean Reef, FL to Dry Tortugas including Florida Bay...1 to 2 ft 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. RAINFALL: Across portions of southern Haiti and Jamaica, storm total rainfall of 4 to 8 inches with isolated total amounts of 15 inches are expected through today. This rain may lead to scattered flash flooding and mudslides, some of which could be significant. Across portions of Cuba today into Monday, rainfall of 5 to 10 inches with isolated maximum amounts of 15 inches is expected. This will result in significant flash flooding and mudslides. Across the Cayman Islands today into Monday, rainfall of 3 to 5 inches is expected. This rain may lead to scattered flash flooding. Rainfall from Elsa will impact portions of the Florida Keys and Florida Peninsula Monday through Wednesday. Amounts of 2 to 4 inches with localized maximum amounts up to 6 inches will be possible, which may result in isolated flash, urban, and minor river flooding. SURF: Swells generated by Elsa will spread westward along the coast of Jamaica and the southern coast of Cuba during the next day or two. Swells will increase near the Florida Keys and south Florida early next week. Please consult products from your local weather office for more details. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM EDT. Next complete advisory at 500 PM EDT. $$ Forecaster Pasch/Roberts
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Tropical Storm Elsa Forecast Advisory Number 17
2021-07-04 16:54:17| National Hurricane Center (Atlantic)
Issued at 1500 UTC SUN JUL 04 2021 000 WTNT25 KNHC 041454 TCMAT5 TROPICAL STORM ELSA FORECAST/ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL AL052021 1500 UTC SUN JUL 04 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... A TROPICAL STORM WARNING HAS BEEN ISSUED FOR THE FLORIDA KEYS FROM CRAIG KEY WESTWARD TO THE DRY TORTUGAS. A TROPICAL STORM WATCH HAS BEEN ISSUED FOR THE FLORIDA KEYS FROM CRAIG KEY EASTWARD TO OCEAN REEF...INCLUDING FLORIDA BAY. A TROPICAL STORM WATCH HAS BEEN ISSUED FOR THE SOUTHWEST COAST OF FLORIDA FROM FLAMINGO NORTHWARD TO BONITA BEACH. THE TROPICAL STORM WARNING FOR HAITI HAS BEEN DISCONTINUED. THE GOVERNMENT OF CUBA HAS ISSUED A TROPICAL STORM WARNING FOR THE PROVINCES OF MATANZAS...MAYABEQUE...AND HAVANA. THE GOVERNMENT OF CUBA HAS ISSUED A TROPICAL STORM WATCH FOR THE PROVINCE OF ARTEMISA. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE CUBAN PROVINCES OF CAMAGUEY...GRANMA...GUANTANAMO...HOLGUIN...LAS TUNAS...SANTIAGO DE CUBA...CIEGO DE AVILA...SANCTI SPIRITUS...VILLA CLARA...CIENFUEGOS...MATANZAS...MAYABEQUE...AND HAVANA * JAMAICA * THE FLORIDA KEYS FROM CRAIG KEY WESTWARD TO THE DRY TORTUGAS A HURRICANE WATCH IS IN EFFECT FOR... * THE CUBAN PROVINCES OF CAMAGUEY...GRANMA...GUANTANAMO...HOLGUIN...LAS TUNAS...AND SANTIAGO DE CUBA A TROPICAL STORM WATCH IS IN EFFECT FOR... * CAYMAN BRAC AND LITTLE CAYMAN * THE CUBAN PROVINCE OF ARTEMISA * THE FLORIDA KEYS FROM EAST OF CRAIG KEY TO OCEAN REEF * FLORIDA BAY * THE SOUTHWEST COAST OF FLORIDA FROM FLAMINGO TO BONITA BEACH A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. A WATCH IS TYPICALLY ISSUED 48 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. INTERESTS ELSEWHERE IN THE FLORIDA PENINSULA SHOULD MONITOR THE PROGRESS OF ELSA. ADDITIONAL WATCHES AND WARNINGS WILL LIKELY BE REQUIRED LATER TODAY. TROPICAL STORM CENTER LOCATED NEAR 18.7N 76.8W AT 04/1500Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1009 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT. 50 KT....... 50NE 0SE 0SW 40NW. 34 KT....... 80NE 80SE 40SW 100NW. 12 FT SEAS.. 90NE 90SE 30SW 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 18.7N 76.8W AT 04/1500Z AT 04/1200Z CENTER WAS LOCATED NEAR 18.5N 76.4W FORECAST VALID 05/0000Z 20.2N 78.2W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 40SE 0SW 40NW. 34 KT... 80NE 60SE 40SW 80NW. FORECAST VALID 05/1200Z 21.9N 80.0W...INLAND MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 50NE 40SE 0SW 40NW. 34 KT... 80NE 60SE 40SW 70NW. FORECAST VALID 06/0000Z 23.4N 81.5W...OVER WATER MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 30SE 0SW 30NW. 34 KT...100NE 80SE 30SW 60NW. FORECAST VALID 06/1200Z 24.7N 82.5W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 30SE 0SW 30NW. 34 KT...100NE 80SE 30SW 60NW. FORECAST VALID 07/0000Z 26.5N 83.0W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 30SE 0SW 0NW. 34 KT... 90NE 90SE 30SW 50NW. FORECAST VALID 07/1200Z 28.6N 82.8W...NEAR COAST MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 30SE 0SW 0NW. 34 KT... 60NE 60SE 30SW 50NW. 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 08/1200Z 33.5N 79.5W...INLAND MAX WIND 40 KT...GUSTS 50 KT. OUTLOOK VALID 09/1200Z 38.5N 71.0W...OVER WATER MAX WIND 35 KT...GUSTS 45 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.7N 76.8W INTERMEDIATE PUBLIC ADVISORY...WTNT35 KNHC/MIATCPAT5...AT 04/1800Z NEXT ADVISORY AT 04/2100Z $$ FORECASTER PASCH
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Tropical Storm Elsa Public Advisory Number 16A
2021-07-04 13:58:13| National Hurricane Center (Atlantic)
Issued at 800 AM EDT Sun Jul 04 2021 000 WTNT35 KNHC 041158 TCPAT5 BULLETIN Tropical Storm Elsa Intermediate Advisory Number 16A NWS National Hurricane Center Miami FL AL052021 800 AM EDT Sun Jul 04 2021 ...ELSA VERY NEAR JAMAICA... ...HEAVY RAINS AND TROPICAL STORM FORCE WINDS EXPECTED TO SPREAD OVER EASTERN CUBA... SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...18.3N 76.2W ABOUT 45 MI...70 KM ENE OF KINGSTON JAMAICA ABOUT 145 MI...235 KM SE OF CABO CRUZ CUBA MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Southern portion of Haiti from Port Au Prince to the southern border with the Dominican Republic * The Cuban provinces of Camaguey, Granma, Guantanamo, Holguin, Las Tunas, Santiago de Cuba, Ciego de Avila, Sancti Spiritus, Villa Clara, and Cienfuegos * Jamaica A Hurricane Watch is in effect for... * The Cuban provinces of Camaguey, Granma, Guantanamo, Holguin, Las Tunas, and Santiago de Cuba A Tropical Storm Watch is in effect for... * Cayman Brac and Little Cayman * The Cuban provinces of Matanzas, Mayabeque, and Havana * The Florida Keys from Craig Key westward to the Dry Tortugas A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area. Interests elsewhere in Cuba, the Cayman Islands, and the Florida peninsula should monitor the progress of Elsa. Additional watches and warnings will likely be required this morning. 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 800 AM EDT (1200 UTC), the center of Tropical Storm Elsa was located near latitude 18.3 North, longitude 76.2 West. Elsa is moving toward the west-northwest near 13 mph (20 km/h). A turn toward the northwest is expected tonight or Monday. On the forecast track, Elsa will move away from the southern portion of Haiti during the next couple of hours, and continue to move near Jamaica and portions of eastern Cuba today, and approach central Cuba tonight. By Monday, Elsa is expected to move across central and western Cuba and head toward the Florida Straits. Elsa is then forecast to move near or over portions of the west coast of Florida on Tuesday and Wednesday. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Some slight strengthening is possible today as Elsa approaches the south-central coast of Cuba. However, gradual weakening is forecast to occur tonight and Monday when Elsa moves across Cuba. After Elsa emerges over the Florida Straits and southeastern Gulf of Mexico some slight restrengthening is possible. Tropical-storm-force winds extend outward up to 125 miles (205 km) from the center. The estimated minimum central pressure is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Elsa can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45 KNHC and on the web at www.hurricanes.gov/graphics_at5.shtml?key_messages. WIND: Tropical storm conditions are expected to continue in southern portions of Haiti for a few more hours, and these conditions are expected to spread across Jamaica later this morning. Tropical storm conditions are expected and hurricane conditions are possible in portions of eastern and central Cuba later today and tonight. Tropical storm conditions are possible in the watch areas in the Cayman Islands by tonight, in western Cuba by early Monday, and the Florida Keys by late Monday. STORM SURGE: A storm surge will raise water levels above normal tide levels by as much as the following amounts in areas of onshore flow within the hurricane watch and warning areas... Southern coast of Cuba...3 to 5 feet Southern coast of Hispaniola...2 to 4 feet 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... Craig Key, FL to Dry Tortugas...1 to 2 feet 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. RAINFALL: Across portions of southern Haiti and Jamaica, rainfall of 4 to 8 inches with isolated total amounts of 15 inches remains possible today. This rain may lead to scattered flash flooding and mudslides, some of which could be significant. Across portions of Cuba today into Monday, rainfall of 5 to 10 inches with isolated maximum amounts of 15 inches is expected. This will result in significant flash flooding and mudslides. Across the Cayman Islands today into Monday, rainfall of 3 to 5 inches is expected. This rain may lead to scattered flash flooding. Rainfall from Elsa will impact portions of the Florida Keys and Florida Peninsula Monday through Wednesday. Amounts of 2 to 4 inches with localized maximum amounts up to 6 inches will be possible, which may result in isolated flash, urban, and minor river flooding. SURF: Swells generated by Elsa will spread westward along the coast of Jamaica and the southern coast of Cuba during the next day or two. Swells will increase near the Florida Keys and south Florida early next week. Please consult products from your local weather office for more details. NEXT ADVISORY ------------- Next complete advisory at 1100 AM EDT. $$ Forecaster Pasch/Roberts
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Tropical Storm Elsa Forecast Discussion Number 16
2021-07-04 10:36:39| National Hurricane Center (Atlantic)
Issued at 500 AM EDT Sun Jul 04 2021 000 WTNT45 KNHC 040836 TCDAT5 Tropical Storm Elsa Discussion Number 16 NWS National Hurricane Center Miami FL AL052021 500 AM EDT Sun Jul 04 2021 The last pass from the Air Force Hurricane Hunters provided interesting and somewhat confusing data on Elsa. The flight-level winds and SFMR data indicate that Elsa's intensity remains around 55 kt, but the wind center is located well to the east of the previous fixes. However, the minimum pressure observed with this new wind center is a few millibars higher than the fixes that were made further west last night. The new center is now beneath the strongest convection, so it seems likely that the mid-level circulation has built downward to the surface and led to this center reformation. Elsa does appear a little better organized in geostationary satellite and microwave images, and it now has a central dense overcast that is fairly symmetric around the center. The NOAA Hurricane Hunters will be investigating Elsa shortly, and the data the aircraft collects will be very helpful in understanding these structural changes and the new intensity information. Elsa appears to have slowed down, and smoothing through the latest center reformation yields an initial motion of 285/12 kt. Despite the changes to the initial motion and position, the overall track forecast reasoning has not changed much. Elsa is expected to move west-northwestward and track near or over Jamaica and eastern Cuba later this morning and then across or just south of the central and western portions of Cuba later today through early Monday. By early Monday, however, Elsa should be making a turn to the north as it moves between the subtropical ridge over the western Atlantic and a trough over the Gulf of Mexico. This motion should take the storm near the Florida Keys by late Monday and near or over the west coast of Florida on Tuesday. After that time, the storm is forecast to turn northeastward and increase its forward speed as it tracks across the southeast U.S. and over the western Atlantic on the northwest side of the ridge. The NHC track forecast is a little slower than the previous one, due in part to the initial motion and position. The short term intensity forecast is very dependent on Elsa's exact track. If the core of the storm moves directly over Jamaica or Cuba, the small vortex would likely be very disrupted due to the mountainous islands. However, if the storm manages to pass between those islands today, some strengthening seems possible given the improved appearance in satellite images. Weakening is forecast to occur on Monday due to a combination of land interaction with Cuba and an increase in vertical wind shear. After the storm moves over the Florida Straits and the eastern Gulf of Mexico, only a small amount of restrengthening is expected due to continued moderate wind shear. The NHC intensity forecast is largely an update of the previous one and in line with the majority of the typically skillful intensity aids. Key Messages: 1. Widespread heavy rain will move across southern Haiti and Jamaica tonight into Sunday where isolated to scattered flash flooding and mudslides will be possible. Heavy rain will then impact the Cayman Islands and Cuba Sunday into Monday resulting in significant flooding and mudslides over Cuba. As Elsa approaches the Florida Keys and Florida Peninsula early next week, isolated flash flooding and minor river flooding will be possible. 2. Tropical storm conditions and dangerous storm surge are expected with hurricane conditions possible in portions of eastern Cuba later this morning. Tropical storm conditions are possible in central and western Cuba tonight and Monday. 3. There is an increasing risk of tropical storm conditions, storm surge, and rainfall impacts beginning late Monday in the Florida Keys, and a Tropical Storm Watch is in effect for portions of the Florida Keys. 4. There is a risk of tropical storm conditions, storm surge, and rainfall impacts along the Florida Peninsula Monday night through Wednesday and the coasts of Georgia and the Carolinas Wednesday and Thursday. However, uncertainty in the forecast remains larger than usual due to Elsa's potential interaction with Cuba. FORECAST POSITIONS AND MAX WINDS INIT 04/0900Z 18.1N 75.5W 55 KT 65 MPH 12H 04/1800Z 19.5N 77.4W 60 KT 70 MPH...NEAR CUBA 24H 05/0600Z 21.5N 79.4W 60 KT 70 MPH...NEAR CUBA 36H 05/1800Z 23.0N 81.0W 50 KT 60 MPH...INLAND 48H 06/0600Z 24.6N 82.2W 45 KT 50 MPH...OVER WATER 60H 06/1800Z 25.9N 82.8W 50 KT 60 MPH 72H 07/0600Z 27.8N 82.9W 50 KT 60 MPH...NEAR FLORIDA COAST 96H 08/0600Z 33.2N 80.0W 40 KT 45 MPH...INLAND 120H 09/0600Z 38.4N 72.7W 35 KT 40 MPH...OVER WATER $$ Forecaster Cangialosi/Reinhart
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