je.st
news
Tag: number
Tropical Storm Laura Forecast Discussion Number 10
2020-08-22 11:26:38| National Hurricane Center (Atlantic)
Issued at 500 AM AST Sat Aug 22 2020 000 WTNT43 KNHC 220926 CCA TCDAT3 Tropical Storm Laura Discussion Number 10...Corrected NWS National Hurricane Center Miami FL AL132020 500 AM AST Sat Aug 22 2020 Corrected status at 96 and 120 h Surface observations and Doppler radar data from Puerto Rico indicate that the center of Laura is currently over the Virgin Islands, eastern Puerto Rico, and the adjacent Caribbean waters. Overall, the system has become a little better organized since the last advisory, with strong convection forming not far from the center to the east and southeast and a somewhat better defined circulation. However, the central area of light winds is quite large, and there is evidence of several vorticity centers rotating around the mean storm center. Earlier scatterometer data suggested that the maximum winds had decreased to 35 kt, and that is the initial intensity for this advisory. The initial motion is a somewhat uncertain 280/18. There is no change in the track forecast philosophy, as a subtropical ridge over the central and western Atlantic is expected to expand westward, causing Laura to move quickly west-northwestward for the next 3 days or so. After that, the storm should turn northwestward toward the western edge of the ridge over the northern Gulf coast. While the dynamical models are in good agreement with the general scenario, there is an unusual amount of cross track spread. The track guidance is spread from the Florida Keys to the western end of Cuba as the storm enters the Gulf of Mexico, and the models have potential landfall locations along the Gulf coast from the Florida Panhandle to the middle Texas coast. One complicating factor is the potential for interaction with Tropical Storm Marco, although at this time the model guidance suggests the storms will stay far enough apart to prevent direct interaction. The new forecast track is similar to the previous track through 72 hr, then it is shifted a bit to the west after that time. The new track lies near the various consensus models. Laura is moving into an environment of light shear, and combined with the somewhat improved organization it suggests the storm should strengthen. However, the forecast track takes the center over Hispaniola and then down the length of Cuba, which should at least slow any intensification. This is reflected in the new intensity forecast which shows slow strengthening. Over the Gulf of Mexico, warm water and a likely favorable shear environment should allow Laura to become a hurricane, a scenario now supported by much of the guidance. Key Messages: 1. Tropical storm conditions are expected across portions of the northern Leeward Islands, the Virgin Islands, and Puerto Rico through today. Tropical storm conditions are also expected along the northern coasts of the Dominican Republic and Haiti, and the Turks and Caicos and southeastern Bahamas Saturday into Sunday. Heavy rainfall is likely across these areas beginning and could cause mudslides and flash and urban flooding through Sunday. 2. Tropical storm conditions are possible over portions of the central Bahamas Sunday night, as well as portions of eastern and central Cuba Sunday and Sunday night. 3. The details of the long-range track and intensity forecasts remain more uncertain than usual since Laura is forecast to move near or over portions of the Greater Antilles through Monday. However, Laura could bring storm surge, rainfall, and wind impacts to portions of Cuba, the Bahamas, and Florida early next week and the northern U.S. Gulf Coast by the middle of next week. Interests there should monitor the progress of Laura and updates to the forecast during the next few days. FORECAST POSITIONS AND MAX WINDS INIT 22/0900Z 17.6N 65.5W 35 KT 40 MPH 12H 22/1800Z 18.2N 67.7W 40 KT 45 MPH 24H 23/0600Z 19.1N 71.0W 40 KT 45 MPH...INLAND 36H 23/1800Z 20.3N 74.6W 45 KT 50 MPH...INLAND 48H 24/0600Z 21.6N 78.3W 45 KT 50 MPH...INLAND 60H 24/1800Z 23.1N 81.8W 45 KT 50 MPH...INLAND 72H 25/0600Z 24.6N 84.7W 55 KT 65 MPH...OVER WATER 96H 26/0600Z 27.5N 89.5W 75 KT 85 MPH 120H 27/0600Z 31.0N 92.0W 55 KT 65 MPH...INLAND $$ Forecaster Beven
Tags: number
discussion
storm
laura
Tropical Storm Laura Forecast Advisory Number 10
2020-08-22 11:24:37| National Hurricane Center (Atlantic)
Issued at 0900 UTC SAT AUG 22 2020 000 WTNT23 KNHC 220923 CCA TCMAT3 TROPICAL STORM LAURA FORECAST/ADVISORY NUMBER 10...CORRECTED NWS NATIONAL HURRICANE CENTER MIAMI FL AL132020 0900 UTC SAT AUG 22 2020 CORRECTED STATUS AT 96 AND 120 HOURS CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * PUERTO RICO...VIEQUES AND CULEBRA * U.S. VIRGIN ISLANDS * BRITISH VIRGIN ISLANDS * SABA AND ST. EUSTATIUS * ST. MAARTEN * ST. MARTIN AND ST. BARTHELEMY * THE NORTHERN COAST OF THE DOMINICAN REPUBLIC FROM CABO ENGANO TO THE BORDER WITH HAITI * THE SOUTHERN COAST OF THE DOMINICAN REPUBLIC FROM CABO ENGANO TO PUNTA PALENQUE * THE NORTHERN COAST OF HAITI FROM LE MOLE ST. NICHOLAS TO THE BORDER WITH THE DOMINICAN REPUBLIC * THE SOUTHEASTERN BAHAMAS AND THE TURKS AND CAICOS ISLANDS A TROPICAL STORM WATCH IS IN EFFECT FOR... * THE CENTRAL BAHAMAS A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. INTERESTS IN CUBA SHOULD MONITOR THE PROGRESS OF LAURA. TROPICAL STORM WARNINGS AND WATCHES WILL LIKELY BE ISSUED FOR PORTIONS OF CENTRAL AND EASTERN CUBA LATER TODAY. TROPICAL STORM CENTER LOCATED NEAR 17.6N 65.5W AT 22/0900Z POSITION ACCURATE WITHIN 60 NM PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 18 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1007 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT.......180NE 180SE 0SW 0NW. 12 FT SEAS.. 90NE 30SE 0SW 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 17.6N 65.5W AT 22/0900Z AT 22/0600Z CENTER WAS LOCATED NEAR 17.4N 64.5W FORECAST VALID 22/1800Z 18.2N 67.7W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...150NE 120SE 0SW 0NW. FORECAST VALID 23/0600Z 19.1N 71.0W...INLAND MAX WIND 40 KT...GUSTS 50 KT. 34 KT...150NE 100SE 0SW 80NW. FORECAST VALID 23/1800Z 20.3N 74.6W...INLAND MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 60SE 0SW 80NW. FORECAST VALID 24/0600Z 21.6N 78.3W...INLAND MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 60SE 0SW 80NW. FORECAST VALID 24/1800Z 23.1N 81.8W...INLAND MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 60SE 0SW 80NW. FORECAST VALID 25/0600Z 24.6N 84.7W...OVER WATER MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 30SE 0SW 30NW. 34 KT...120NE 90SE 40SW 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 26/0600Z 27.5N 89.5W MAX WIND 75 KT...GUSTS 90 KT. OUTLOOK VALID 27/0600Z 31.0N 92.0W...INLAND MAX WIND 55 KT...GUSTS 65 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.6N 65.5W INTERMEDIATE PUBLIC ADVISORY...WTNT33 KNHC/MIATCPAT3...AT 22/1200Z NEXT ADVISORY AT 22/1500Z $$ FORECASTER BEVEN
Tags: number
storm
laura
advisory
Tropical Storm Laura Wind Speed Probabilities Number 10
2020-08-22 10:56:09| National Hurricane Center (Atlantic)
Issued at 0900 UTC SAT AUG 22 2020 105 FONT13 KNHC 220856 PWSAT3 TROPICAL STORM LAURA WIND SPEED PROBABILITIES NUMBER 10 NWS NATIONAL HURRICANE CENTER MIAMI FL AL132020 0900 UTC SAT AUG 22 2020 AT 0900Z THE CENTER OF TROPICAL STORM LAURA WAS LOCATED NEAR LATITUDE 17.6 NORTH...LONGITUDE 65.5 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 35 KTS...40 MPH...65 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 06Z SAT 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 06Z SAT 18Z SAT 06Z SUN 18Z SUN 06Z MON 06Z TUE 06Z WED PERIODS TO TO TO TO TO TO TO 18Z SAT 06Z SUN 18Z SUN 06Z MON 06Z TUE 06Z WED 06Z THU FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT COCOA BEACH FL 34 X X( X) X( X) X( X) 3( 3) 1( 4) X( 4) PATRICK AFB 34 X X( X) X( X) X( X) 3( 3) 1( 4) X( 4) FT PIERCE FL 34 X X( X) X( X) X( X) 4( 4) 2( 6) X( 6) W PALM BEACH 34 X X( X) X( X) X( X) 5( 5) 2( 7) X( 7) FT LAUDERDALE 34 X X( X) X( X) 1( 1) 7( 8) 1( 9) X( 9) MIAMI FL 34 X X( X) X( X) 1( 1) 3( 4) 1( 5) X( 5) HOMESTEAD ARB 34 X X( X) X( X) 1( 1) 5( 6) 1( 7) X( 7) MARATHON FL 34 X X( X) X( X) 1( 1) 22(23) 1(24) X(24) MARATHON FL 50 X X( X) X( X) X( X) 3( 3) X( 3) X( 3) KEY WEST FL 34 X X( X) X( X) 1( 1) 29(30) 2(32) X(32) KEY WEST FL 50 X X( X) X( X) X( X) 5( 5) 1( 6) X( 6) NAPLES FL 34 X X( X) X( X) X( X) 15(15) 2(17) X(17) FT MYERS FL 34 X X( X) X( X) X( X) 5( 5) 2( 7) X( 7) VENICE FL 34 X X( X) X( X) X( X) 11(11) 5(16) X(16) TAMPA FL 34 X X( X) X( X) X( X) 7( 7) 4(11) X(11) CEDAR KEY FL 34 X X( X) X( X) X( X) 3( 3) 5( 8) X( 8) TALLAHASSEE FL 34 X X( X) X( X) X( X) X( X) 2( 2) 2( 4) ST MARKS FL 34 X X( X) X( X) X( X) X( X) 2( 2) 2( 4) APALACHICOLA 34 X X( X) X( X) X( X) 2( 2) 10(12) 2(14) GFMX 290N 850W 34 X X( X) X( X) X( X) 4( 4) 12(16) 2(18) PANAMA CITY FL 34 X X( X) X( X) X( X) 1( 1) 11(12) 3(15) DESTIN EXEC AP 34 X X( X) X( X) X( X) X( X) 6( 6) 5(11) COLUMBUS GA 34 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) BIRMINGHAM AL 34 X X( X) X( X) X( X) X( X) 1( 1) 4( 5) MONTGOMERY AL 34 X X( X) X( X) X( X) X( X) 2( 2) 4( 6) WHITING FLD FL 34 X X( X) X( X) X( X) X( X) 5( 5) 8(13) PENSACOLA FL 34 X X( X) X( X) X( X) X( X) 6( 6) 9(15) PENSACOLA FL 50 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) GFMX 290N 870W 34 X X( X) X( X) X( X) 2( 2) 25(27) 7(34) GFMX 290N 870W 50 X X( X) X( X) X( X) X( X) 6( 6) 3( 9) GFMX 290N 870W 64 X X( X) X( X) X( X) X( X) 2( 2) 2( 4) MOBILE AL 34 X X( X) X( X) X( X) X( X) 8( 8) 15(23) MOBILE AL 50 X X( X) X( X) X( X) X( X) 1( 1) 5( 6) MOBILE AL 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) GULFPORT MS 34 X X( X) X( X) X( X) X( X) 10(10) 18(28) GULFPORT MS 50 X X( X) X( X) X( X) X( X) 1( 1) 7( 8) GULFPORT MS 64 X X( X) X( X) X( X) X( X) X( X) 2( 2) STENNIS MS 34 X X( X) X( X) X( X) X( X) 10(10) 20(30) STENNIS MS 50 X X( X) X( X) X( X) X( X) 2( 2) 9(11) STENNIS MS 64 X X( X) X( X) X( X) X( X) X( X) 4( 4) BURAS LA 34 X X( X) X( X) X( X) X( X) 16(16) 17(33) BURAS LA 50 X X( X) X( X) X( X) X( X) 3( 3) 10(13) BURAS LA 64 X X( X) X( X) X( X) X( X) 1( 1) 4( 5) GFMX 280N 890W 34 X X( X) X( X) X( X) 2( 2) 37(39) 13(52) GFMX 280N 890W 50 X X( X) X( X) X( X) X( X) 15(15) 8(23) GFMX 280N 890W 64 X X( X) X( X) X( X) X( X) 5( 5) 4( 9) JACKSON MS 34 X X( X) X( X) X( X) X( X) 3( 3) 19(22) JACKSON MS 50 X X( X) X( X) X( X) X( X) X( X) 6( 6) JACKSON MS 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) NEW ORLEANS LA 34 X X( X) X( X) X( X) X( X) 11(11) 23(34) NEW ORLEANS LA 50 X X( X) X( X) X( X) X( X) 2( 2) 11(13) NEW ORLEANS LA 64 X X( X) X( X) X( X) X( X) X( X) 5( 5) GFMX 280N 910W 34 X X( X) X( X) X( X) 1( 1) 27(28) 16(44) GFMX 280N 910W 50 X X( X) X( X) X( X) X( X) 12(12) 10(22) GFMX 280N 910W 64 X X( X) X( X) X( X) X( X) 4( 4) 5( 9) BATON ROUGE LA 34 X X( X) X( X) X( X) X( X) 7( 7) 26(33) BATON ROUGE LA 50 X X( X) X( X) X( X) X( X) 1( 1) 12(13) BATON ROUGE LA 64 X X( X) X( X) X( X) X( X) X( X) 5( 5) MORGAN CITY LA 34 X X( X) X( X) X( X) X( X) 11(11) 24(35) MORGAN CITY LA 50 X X( X) X( X) X( X) X( X) 2( 2) 12(14) MORGAN CITY LA 64 X X( X) X( X) X( X) X( X) X( X) 5( 5) ALEXANDRIA LA 34 X X( X) X( X) X( X) X( X) 4( 4) 23(27) ALEXANDRIA LA 50 X X( X) X( X) X( X) X( X) X( X) 10(10) ALEXANDRIA LA 64 X X( X) X( X) X( X) X( X) X( X) 3( 3) LAFAYETTE LA 34 X X( X) X( X) X( X) X( X) 7( 7) 25(32) LAFAYETTE LA 50 X X( X) X( X) X( X) X( X) 2( 2) 12(14) LAFAYETTE LA 64 X X( X) X( X) X( X) X( X) X( X) 6( 6) NEW IBERIA LA 34 X X( X) X( X) X( X) X( X) 8( 8) 25(33) NEW IBERIA LA 50 X X( X) X( X) X( X) X( X) 2( 2) 11(13) NEW IBERIA LA 64 X X( X) X( X) X( X) X( X) X( X) 5( 5) GFMX 280N 930W 34 X X( X) X( X) X( X) X( X) 12(12) 15(27) GFMX 280N 930W 50 X X( X) X( X) X( X) X( X) 4( 4) 6(10) GFMX 280N 930W 64 X X( X) X( X) X( X) X( X) 1( 1) 4( 5) SHREVEPORT LA 34 X X( X) X( X) X( X) X( X) 2( 2) 14(16) SHREVEPORT LA 50 X X( X) X( X) X( X) X( X) X( X) 4( 4) FORT POLK LA 34 X X( X) X( X) X( X) X( X) 3( 3) 21(24) FORT POLK LA 50 X X( X) X( X) X( X) X( X) 1( 1) 7( 8) FORT POLK LA 64 X X( X) X( X) X( X) X( X) X( X) 3( 3) LAKE CHARLES 34 X X( X) X( X) X( X) X( X) 5( 5) 21(26) LAKE CHARLES 50 X X( X) X( X) X( X) X( X) 1( 1) 8( 9) LAKE CHARLES 64 X X( X) X( X) X( X) X( X) X( X) 3( 3) CAMERON LA 34 X X( X) X( X) X( X) X( X) 8( 8) 21(29) CAMERON LA 50 X X( X) X( X) X( X) X( X) 2( 2) 8(10) CAMERON LA 64 X X( X) X( X) X( X) X( X) X( X) 4( 4) JASPER TX 34 X X( X) X( X) X( X) X( X) 3( 3) 16(19) JASPER TX 50 X X( X) X( X) X( X) X( X) X( X) 6( 6) JASPER TX 64 X X( X) X( X) X( X) X( X) X( X) 2( 2) KOUNTZE TX 34 X X( X) X( X) X( X) X( X) 2( 2) 15(17) KOUNTZE TX 50 X X( X) X( X) X( X) X( X) X( X) 5( 5) KOUNTZE TX 64 X X( X) X( X) X( X) X( X) X( X) 2( 2) PORT ARTHUR TX 34 X X( X) X( X) X( X) X( X) 3( 3) 16(19) PORT ARTHUR TX 50 X X( X) X( X) X( X) X( X) X( X) 6( 6) PORT ARTHUR TX 64 X X( X) X( X) X( X) X( X) X( X) 2( 2) GALVESTON TX 34 X X( X) X( X) X( X) X( X) 4( 4) 12(16) GALVESTON TX 50 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) GALVESTON TX 64 X X( X) X( X) X( X) X( X) X( X) 2( 2) HOUSTON TX 34 X X( X) X( X) X( X) X( X) 1( 1) 9(10) HOUSTON TX 50 X X( X) X( X) X( X) X( X) X( X) 2( 2) HOUSTON TX 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) AUSTIN TX 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) FREEPORT TX 34 X X( X) X( X) X( X) X( X) 1( 1) 8( 9) GFMX 280N 950W 34 X X( X) X( X) X( X) X( X) 4( 4) 8(12) GFMX 280N 950W 50 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) GFMX 280N 950W 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) HIGH ISLAND TX 34 X X( X) X( X) X( X) X( X) 3( 3) 12(15) HIGH ISLAND TX 50 X X( X) X( X) X( X) X( X) 1( 1) 4( 5) HIGH ISLAND TX 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) MATAGORDA TX 34 X X( X) X( X) X( X) X( X) 2( 2) 6( 8) PORT O CONNOR 34 X X( X) X( X) X( X) X( X) 2( 2) 5( 7) ROCKPORT TX 34 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) CORPUS CHRISTI 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) GFMX 270N 960W 34 X X( X) X( X) X( X) X( X) 2( 2) 4( 6) COZUMEL MX 34 X X( X) X( X) X( X) 1( 1) 2( 3) X( 3) GRAND BAHAMA 34 X X( X) X( X) X( X) 3( 3) 1( 4) X( 4) NEW PROVIDENCE 34 X X( X) X( X) 5( 5) 2( 7) X( 7) X( 7) ANDROS 34 X X( X) 1( 1) 8( 9) 3(12) X(12) X(12) GREAT EXUMA 34 X X( X) 2( 2) 9(11) X(11) X(11) X(11) SAN SALVADOR 34 X X( X) 2( 2) 3( 5) X( 5) X( 5) X( 5) MAYAGUANA 34 X 1( 1) 10(11) 1(12) X(12) X(12) X(12) GRAND TURK 34 X 6( 6) 11(17) X(17) X(17) X(17) X(17) CP SAN ANTONIO 34 X X( X) X( X) X( X) 5( 5) 4( 9) 1(10) HAVANA 34 X X( X) X( X) 1( 1) 27(28) 3(31) X(31) HAVANA 50 X X( X) X( X) X( X) 6( 6) 1( 7) X( 7) HAVANA 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) ISLE OF PINES 34 X X( X) X( X) X( X) 9( 9) 1(10) X(10) CIENFUEGOS 34 X X( X) X( X) 6( 6) 18(24) X(24) X(24) CIENFUEGOS 50 X X( X) X( X) 1( 1) 4( 5) X( 5) X( 5) CAMAGUEY 34 X X( X) 1( 1) 27(28) 6(34) X(34) X(34) CAMAGUEY 50 X X( X) X( X) 6( 6) 1( 7) X( 7) X( 7) CAMAGUEY 64 X X( X) X( X) 1( 1) X( 1) X( 1) X( 1) GUANTANAMO BAY 34 X X( X) 16(16) 20(36) X(36) X(36) X(36) GUANTANAMO BAY 50 X X( X) 3( 3) 2( 5) X( 5) X( 5) X( 5) LES CAYES 34 X X( X) 4( 4) 1( 5) X( 5) X( 5) X( 5) PORT-AU-PRINCE 34 X 5( 5) 26(31) X(31) X(31) X(31) X(31) CAPE BEATA 34 X 7( 7) 3(10) X(10) X(10) X(10) X(10) PUERTO PLATA 34 1 51(52) 13(65) X(65) X(65) X(65) X(65) PUERTO PLATA 50 X 5( 5) 2( 7) X( 7) X( 7) X( 7) X( 7) SANTO DOMINGO 34 X 63(63) 2(65) X(65) X(65) X(65) X(65) SANTO DOMINGO 50 X 5( 5) X( 5) X( 5) X( 5) X( 5) X( 5) PONCE PR 34 81 2(83) X(83) X(83) X(83) X(83) X(83) AGUADILLA PR 34 70 13(83) X(83) X(83) X(83) X(83) X(83) AGUADILLA PR 50 5 X( 5) X( 5) X( 5) X( 5) X( 5) X( 5) SAN JUAN PR 34 89 X(89) X(89) X(89) X(89) X(89) X(89) VIEQUES PR 34 89 X(89) X(89) X(89) X(89) X(89) X(89) SAINT THOMAS 34 98 X(98) X(98) X(98) X(98) X(98) X(98) SAINT CROIX 34 93 X(93) X(93) X(93) X(93) X(93) X(93) SAINT MAARTEN 34 99 X(99) X(99) X(99) X(99) X(99) X(99) SABA 34 99 X(99) X(99) X(99) X(99) X(99) X(99) ST EUSTATIUS 34 99 X(99) X(99) X(99) X(99) X(99) X(99) ST KITTS-NEVIS 34 99 X(99) X(99) X(99) X(99) X(99) X(99) AVES 34 99 X(99) X(99) X(99) X(99) X(99) X(99) PENSACOLA NAS 34 X X( X) X( X) X( X) 1( 1) 15(16) 9(25) PENSACOLA NAS 50 X X( X) X( X) X( X) X( X) 2( 2) 3( 5) PENSACOLA NAS 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) KEESLER AB 34 X X( X) X( X) X( X) 1( 1) 17(18) 17(35) KEESLER AB 50 X X( X) X( X) X( X) X( X) 3( 3) 7(10) KEESLER AB 64 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) $$ FORECASTER BEVEN
Tropical Storm Laura Public Advisory Number 10
2020-08-22 10:55:36| National Hurricane Center (Atlantic)
Issued at 500 AM AST Sat Aug 22 2020 000 WTNT33 KNHC 220855 TCPAT3 BULLETIN Tropical Storm Laura Advisory Number 10 NWS National Hurricane Center Miami FL AL132020 500 AM AST Sat Aug 22 2020 ...CENTER OF DISORGANIZED LAURA OVER THE VIRGIN ISLANDS AND EASTERN PUERTO RICO... ...EXPECTED TO MOVE ACROSS MUCH OF THE GREATER ANTILLES THIS WEEKEND... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...17.6N 65.5W ABOUT 70 MI...110 KM SE OF SAN JUAN PUERTO RICO ABOUT 295 MI...475 KM E OF SANTO DOMINGO DOMINICAN REPUBLIC MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 21 MPH...33 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... * Puerto Rico, Vieques and Culebra * U.S. Virgin Islands * British Virgin Islands * Saba and St. Eustatius * St. Maarten * St. Martin and St. Barthelemy * The northern coast of the Dominican Republic from Cabo Engano to the border with Haiti * The southern coast of the Dominican Republic from Cabo Engano to Punta Palenque * The northern coast of Haiti from Le Mole St. Nicholas to the border with the Dominican Republic * The southeastern Bahamas and the Turks and Caicos Islands A Tropical Storm Watch is in effect for... * The central Bahamas A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests in Cuba should monitor the progress of Laura. Tropical Storm Warnings and Watches will likely be issued for portions of central and eastern Cuba 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 500 AM AST (0900 UTC), the center of Tropical Storm Laura was located near latitude 17.6 North, longitude 65.5 West. Laura is moving toward the west near 21 mph (33 km/h) and a generally west-northwestward motion is expected over the next few days. On the forecast track, the center of Laura will move near or over portions of the Virgin Islands and Puerto Rico this morning, near or over Hispaniola this afternoon and tonight, and near or over eastern Cuba Sunday and Sunday night. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Slow strengthening is expected during the next few days. Tropical-storm-force winds extend outward up to 205 miles (335 km) mainly to the north of the center. The estimated minimum central pressure based on surface observations is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Laura is expected to produce 3 to 6 inches of rain over Puerto Rico and the Virgin Islands, the Dominican Republic, the southern Haitian Peninsula and eastern Cuba through Sunday. Maximum amounts up to 8 inches are possible along eastern portions and the southern slopes of Puerto Rico, as well as over Haiti, the Dominican Republic and eastern Cuba. This heavy rainfall could lead to flash and urban flooding, as well as an increased potential for mudslides with minor river flooding in Puerto Rico. 1 to 3 inches of rain with isolated maximum totals of 5 inches is expected over the northern Leeward Islands, the Turks and Caicos and southeast Bahamas. WIND: Tropical storm conditions are expected within portions of the warning area area this morning through Sunday. Tropical storm conditions are possible within portions of the watch area Sunday night. SURF: Swells generated by Laura are affecting portions of the northern Leeward Islands. These swells are expected to spread across the northern coasts of Puerto Rico, Hispaniola and Cuba, and much of the Bahamas during the next few days. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 800 AM AST. Next complete advisory at 1100 AM AST. $$ Forecaster Beven
Tags: number
public
storm
laura
Tropical Storm Marco Forecast Discussion Number 8
2020-08-22 10:50:42| National Hurricane Center (Atlantic)
Issued at 400 AM CDT Sat Aug 22 2020 000 WTNT44 KNHC 220850 TCDAT4 Tropical Storm Marco Discussion Number 8 NWS National Hurricane Center Miami FL AL142020 400 AM CDT Sat Aug 22 2020 SFMR data from the last leg of the 53rd Air Force Reserve reconnaissance aircraft indicated a couple of 48-50 kt winds, but were associated with a significant spike in the rainfall rate. Additionally, the flight-level winds were only 36 kt in that area and the central pressure has increased a little to 1005 mb. The cloud pattern has improved during the past several hours with deep convection developing near the center and spiral bands forming over the eastern portion of cyclone. Based on a blend the hurricane hunter data and current subjective satellite intensity estimates, the initial intensity is raised to 40 kt. Although the UW-CIMSS shear product and global models indicate a favorable upper wind pattern, GOES-16 sounder analysis data show a higher than normal vertically stable environment in the western Caribbean. This negative contribution maybe what's hampering significant development. Consequently, as shown in the previous advisory, only modest strengthening is indicated in the NHC forecast through 48 hours. Only the Decay SHIPS and LGEM intensity models indicate that Marco will become a hurricane in a couple of days. Both the HMON and HWRF have backed off of showing a hurricane in the Gulf. Afterward, increasing west-southwesterly shear should lead to weakening as the cyclone turns toward the northwestern Gulf coast. The NHC forecast lies between the higher LGEM/Decay SHIPS solution and the lower NOAA HCCA intensity model which indicates a peak intensity of 55 kt. The initial motion is estimated to be west-northwestward, or 335/10 kt. Marco is being steered toward the northwest by a mid- to upper-level cut-off low and associated trough extending into the southwestern Gulf from the Mississippi Valley. By Sunday, the aforementioned feature is forecast to lift northeastward allowing the subtropical ridge to build back over the central gulf. This should cause Marco to turn northwestward and west-northwestward early next week toward the the northwestern Gulf coast. Large-scale guidance generally agree that any binary direct or indirect interaction, while both systems are in the gulf and at near equal latitude, is unlikely at this point. The official track forecast has been adjusted to the right of the previous advisory and lies just to the left of the various multi-model consensus aids. The 34 kt wind radii have been adjusted based on the aircraft reconnaissance data and a 0224 UTC scatterometer pass. Key Messages: 1. Marco is forecast to strengthen over the northwestern Caribbean Sea through Saturday as it approaches the northeast coast of the Yucatan Peninsula. A Hurricane Watch and a Tropical Storm Warning are in effect for portions of that region. 2. The system is expected to move into the south-central Gulf of Mexico as a tropical storm on Sunday. Although some strengthening is anticipated on Sunday, weakening is forecast as the system approaches the northwestern Gulf coast on Tuesday. It is still too soon to know exactly the location and magnitude of impacts the system will produce along the central or northwestern Gulf Coast, and interests in that area should continue monitoring the progress of this system over the next few days. FORECAST POSITIONS AND MAX WINDS INIT 22/0900Z 19.6N 85.4W 40 KT 45 MPH 12H 22/1800Z 20.9N 86.1W 45 KT 50 MPH 24H 23/0600Z 22.5N 87.1W 50 KT 60 MPH 36H 23/1800Z 24.1N 88.3W 55 KT 65 MPH 48H 24/0600Z 25.7N 89.9W 60 KT 70 MPH 60H 24/1800Z 27.3N 91.3W 55 KT 65 MPH 72H 25/0600Z 28.3N 93.4W 50 KT 60 MPH 96H 26/0600Z 29.1N 96.2W 40 KT 45 MPH...INLAND 120H 27/0600Z 29.6N 97.8W 25 KT 30 MPH...POST-TROP/REMNT LOW $$ Forecaster Roberts
Tags: number
discussion
marco
storm
Sites : [1065] [1066] [1067] [1068] [1069] [1070] [1071] [1072] [1073] [1074] [1075] [1076] [1077] [1078] [1079] [1080] [1081] [1082] [1083] [1084] next »