je.st
news
Tag: storm
Tropical Storm Isaias Graphics
2020-07-30 22:56:40| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Thu, 30 Jul 2020 20:56:40 GMT Wind Speed Probabilities last updated Thu, 30 Jul 2020 21:25:01 GMT
Tags: graphics
storm
tropical
tropical storm
Tropical Storm Isaias Forecast Discussion Number 10
2020-07-30 22:55:23| National Hurricane Center (Atlantic)
Issued at 500 PM EDT Thu Jul 30 2020 000 WTNT44 KNHC 302055 TCDAT4 Tropical Storm Isaias Discussion Number 10 NWS National Hurricane Center Miami FL AL092020 500 PM EDT Thu Jul 30 2020 Surface observations in the Dominican Republic indicate that the poorly defined center of Isaias moved over the southeastern portion of Hispaniola around 1600 UTC. There is currently a significant concentration of convection near the mid-level center that is located along the northern coast of the island, and recent surface observations suggest that a new center may be forming near the area of mid-level rotation seen in satellite imagery. The advisory position has been placed between the previous estimated center location and the mid-level center until it becomes more clear that reformation has occurred. Earlier ASCAT data that arrived shortly after the previous advisory and reconnaissance aircraft data from this morning supported an intensity of 45-50 kt, and since there has no significant degradation the overall organization since that time, the initial intensity remains 50 kt. The central pressure of 999 mb is based on a surface observation of 1001 mb and 25 kt of wind at Puerto Plata in the Dominican Republic. The initial motion estimate is a somewhat uncertain 310/17 kt. The track forecast reasoning has not changed since the previous advisory. The tropical storm should continue on a general northwest heading during the next 24 to 36 hours along the southern side of a subtropical ridge. After that time, a trough moving into the east-central United States should cause Isaias to turn north-northwestward and northward as the western portion of the ridge erodes. By early next week, Isaias is expected to turn northeastward and accelerate ahead of the aforementioned trough. The 1200 UTC dynamical model guidance has shifted eastward and now that Isaias is expected to become a stronger and deeper cyclone, that also favors a more eastward track. The updated official forecast is a blend of the various consensus aids. Since the new center is still in its formative stage some additional shifts in the track may occur. In addition, strong winds and heavy rainfall will extend far from the center. Visible imagery has shown significant banding near the mid-level circulation. Assuming that the center reforms near that feature and moves away from Hispaniola tonight, strengthening is expected during the next 24-36 hours and Isaias is now forecast to become a hurricane. After that time, there are mixed signals regarding the amount of southwesterly vertical wind shear and the models generally do not show much additional strengthening. Therefore, the NHC intensity forecast shows a leveling off in intensity after 48 h. It still needs to be stressed that that there is a higher than usual amount of uncertainty in the intensity forecast. Key Messages: 1. Isaias will produce heavy rains and potentially life-threatening flash flooding and mudslides across Puerto Rico, the Dominican Republic, northern Haiti, Turks and Caicos and the Bahamas. 2. Hurricane conditions and dangerous storm surge are expected in portions of the central and northwest Bahamas late Friday and Saturday. Preparations to protect life and property should be rushed to completion. Tropical storm conditions will continue to spread across portions of the Dominican Republic, Haiti, the Turks and Caicos and the southeast Bahamas tonight through Friday, and Tropical Storm Warnings are in effect for these areas. 3. Tropical storm conditions are possible along portions of the Florida east coast beginning Saturday, and a Tropical Storm Watch has been issued. While storm surge watches are not currently needed for this area, they may be required tonight or early tomorrow if the forecast track shifts closer to the coast. Heavy rains associated with Isaias may begin to affect eastern Florida this weekend, potentially resulting in isolated flash and urban flooding. 4. There is a risk of impacts from winds, heavy rainfall, and storm surge this weekend along the Florida east coast and spreading northward along the remainder of the U.S. east coast through early next week. The details of the track and intensity forecast remain uncertain and it is too soon to determine the magnitude and location of these potential impacts, but interests along the entire U.S. east coast should monitor the progress of Isaias and updates to the forecast. FORECAST POSITIONS AND MAX WINDS INIT 30/2100Z 19.5N 70.6W 50 KT 60 MPH...INLAND 12H 31/0600Z 20.8N 72.7W 55 KT 65 MPH...OVER WATER 24H 31/1800Z 22.7N 75.1W 60 KT 70 MPH 36H 01/0600Z 24.5N 77.1W 65 KT 75 MPH 48H 01/1800Z 26.1N 78.5W 65 KT 75 MPH 60H 02/0600Z 27.7N 79.5W 65 KT 75 MPH 72H 02/1800Z 29.2N 79.7W 65 KT 75 MPH 96H 03/1800Z 33.3N 78.0W 65 KT 75 MPH 120H 04/1800Z 40.0N 71.0W 60 KT 70 MPH $$ Forecaster Brown
Tags: number
discussion
storm
tropical
Summary for Tropical Storm Isaias (AT4/AL092020)
2020-07-30 22:54:52| National Hurricane Center (Atlantic)
...ISAIAS CONTINUES TO BRING HEAVY RAINFALL AND TROPICAL-STORM-FORCE WINDS TO PORTIONS OF THE DOMINICAN REPUBLIC... ...FORECAST TO BECOME A HURRICANE FRIDAY OR FRIDAY NIGHT... As of 5:00 PM EDT Thu Jul 30 the center of Isaias was located near 19.5, -70.6 with movement NW at 20 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 60 mph.
Tags: summary
storm
tropical
tropical storm
Tropical Storm Isaias Wind Speed Probabilities Number 10
2020-07-30 22:54:52| National Hurricane Center (Atlantic)
Issued at 2100 UTC THU JUL 30 2020 000 FONT14 KNHC 302054 PWSAT4 TROPICAL STORM ISAIAS WIND SPEED PROBABILITIES NUMBER 10 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092020 2100 UTC THU JUL 30 2020 AT 2100Z THE CENTER OF TROPICAL STORM ISAIAS WAS LOCATED NEAR LATITUDE 19.5 NORTH...LONGITUDE 70.6 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 18Z THU 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 THU 06Z FRI 18Z FRI 06Z SAT 18Z SAT 18Z SUN 18Z MON PERIODS TO TO TO TO TO TO TO 06Z FRI 18Z FRI 06Z SAT 18Z SAT 18Z SUN 18Z MON 18Z TUE FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT YARMOUTH NS 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) WORCESTER MA 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) SPRINGFIELD MA 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) BOSTON MA 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) HYANNIS MA 34 X X( X) X( X) X( X) X( X) X( X) 8( 8) NANTUCKET MA 34 X X( X) X( X) X( X) X( X) X( X) 13(13) NANTUCKET MA 50 X X( X) X( X) X( X) X( X) X( X) 4( 4) NANTUCKET MA 64 X X( X) X( X) X( X) X( X) X( X) 2( 2) PROVIDENCE RI 34 X X( X) X( X) X( X) X( X) X( X) 9( 9) BRIDGEPORT CT 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) NEW HAVEN CT 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) HARTFORD CT 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) NEW LONDON CT 34 X X( X) X( X) X( X) X( X) X( X) 5( 5) MONTAUK POINT 34 X X( X) X( X) X( X) X( X) X( X) 12(12) MONTAUK POINT 50 X X( X) X( X) X( X) X( X) X( X) 2( 2) MONTAUK POINT 64 X X( X) X( X) X( X) X( X) X( X) 2( 2) ISLIP NY 34 X X( X) X( X) X( X) X( X) X( X) 6( 6) NYC JFK AIRPRT 34 X X( X) X( X) X( X) X( X) X( X) 8( 8) NYC CNTRL PARK 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) NEWARK NJ 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) TRENTON NJ 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) NWS EARLE NJ 34 X X( X) X( X) X( X) X( X) X( X) 5( 5) PHILADELPHIA 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) 7( 7) DOVER DE 34 X X( X) X( X) X( X) X( X) 1( 1) 5( 6) ANNAPOLIS MD 34 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) WASHINGTON DC 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) CAPE HENLOPEN 34 X X( X) X( X) X( X) X( X) 1( 1) 12(13) OCEAN CITY MD 34 X X( X) X( X) X( X) X( X) 2( 2) 14(16) OCEAN CITY MD 50 X X( X) X( X) X( X) X( X) X( X) 3( 3) OCEAN CITY MD 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) PAX RIVER NAS 34 X X( X) X( X) X( X) X( X) 1( 1) 5( 6) WALLOPS CDA 34 X X( X) X( X) X( X) X( X) 2( 2) 13(15) WALLOPS CDA 50 X X( X) X( X) X( X) X( X) X( X) 2( 2) WALLOPS CDA 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) RICHMOND VA 34 X X( X) X( X) X( X) X( X) 1( 1) 4( 5) NORFOLK NAS 34 X X( X) X( X) X( X) X( X) 2( 2) 10(12) NORFOLK VA 34 X X( X) X( X) X( X) X( X) 2( 2) 10(12) OCEANA NAS VA 34 X X( X) X( X) X( X) X( X) 2( 2) 12(14) ELIZABETH CTY 34 X X( X) X( X) X( X) X( X) 4( 4) 13(17) ELIZABETH CTY 50 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) ELIZABETH CTY 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) RALEIGH NC 34 X X( X) X( X) X( X) X( X) 2( 2) 2( 4) ROCKY MT NC 34 X X( X) X( X) X( X) X( X) 4( 4) 6(10) CAPE HATTERAS 34 X X( X) X( X) X( X) X( X) 9( 9) 20(29) CAPE HATTERAS 50 X X( X) X( X) X( X) X( X) 1( 1) 6( 7) CAPE HATTERAS 64 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) FAYETTEVILLE 34 X X( X) X( X) X( X) 1( 1) 5( 6) 4(10) CHERRY PT NC 34 X X( X) X( X) X( X) X( X) 9( 9) 11(20) CHERRY PT NC 50 X X( X) X( X) X( X) X( X) 2( 2) 3( 5) CHERRY PT NC 64 X X( X) X( X) X( X) X( X) 1( 1) 1( 2) NEW RIVER NC 34 X X( X) X( X) X( X) X( X) 10(10) 10(20) NEW RIVER NC 50 X X( X) X( X) X( X) X( X) 2( 2) 3( 5) NEW RIVER NC 64 X X( X) X( X) X( X) X( X) 1( 1) 1( 2) MOREHEAD CITY 34 X X( X) X( X) X( X) X( X) 13(13) 15(28) MOREHEAD CITY 50 X X( X) X( X) X( X) X( X) 2( 2) 5( 7) MOREHEAD CITY 64 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) SURF CITY NC 34 X X( X) X( X) X( X) 1( 1) 14(15) 10(25) SURF CITY NC 50 X X( X) X( X) X( X) X( X) 4( 4) 3( 7) SURF CITY NC 64 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) WILMINGTON NC 34 X X( X) X( X) X( X) X( X) 12(12) 8(20) WILMINGTON NC 50 X X( X) X( X) X( X) X( X) 3( 3) 1( 4) WILMINGTON NC 64 X X( X) X( X) X( X) X( X) 1( 1) 1( 2) BALD HEAD ISL 34 X X( X) X( X) X( X) 2( 2) 18(20) 8(28) BALD HEAD ISL 50 X X( X) X( X) X( X) X( X) 5( 5) 2( 7) BALD HEAD ISL 64 X X( X) X( X) X( X) X( X) 2( 2) 2( 4) FLORENCE SC 34 X X( X) X( X) X( X) 1( 1) 7( 8) 2(10) COLUMBIA SC 34 X X( X) X( X) X( X) 1( 1) 3( 4) 1( 5) LITTLE RIVER 34 X X( X) X( X) X( X) 2( 2) 17(19) 5(24) LITTLE RIVER 50 X X( X) X( X) X( X) X( X) 4( 4) 1( 5) LITTLE RIVER 64 X X( X) X( X) X( X) X( X) 3( 3) X( 3) MYRTLE BEACH 34 X X( X) X( X) X( X) 2( 2) 18(20) 4(24) MYRTLE BEACH 50 X X( X) X( X) X( X) X( X) 4( 4) 1( 5) MYRTLE BEACH 64 X X( X) X( X) X( X) X( X) 2( 2) X( 2) GEORGETOWN SC 34 X X( X) X( X) X( X) 2( 2) 14(16) 2(18) GEORGETOWN SC 50 X X( X) X( X) X( X) X( X) 3( 3) X( 3) CHARLESTON SC 34 X X( X) X( X) X( X) 5( 5) 18(23) 2(25) CHARLESTON SC 50 X X( X) X( X) X( X) X( X) 3( 3) 1( 4) CHARLESTON SC 64 X X( X) X( X) X( X) X( X) 2( 2) X( 2) BEAUFORT MCAS 34 X X( X) X( X) X( X) 5( 5) 14(19) 1(20) BEAUFORT MCAS 50 X X( X) X( X) X( X) 1( 1) 2( 3) X( 3) BEAUFORT MCAS 64 X X( X) X( X) X( X) X( X) 1( 1) X( 1) AUGUSTA GA 34 X X( X) X( X) X( X) X( X) 3( 3) X( 3) SAVANNAH GA 34 X X( X) X( X) X( X) 3( 3) 8(11) 1(12) KINGS BAY GA 34 X X( X) X( X) X( X) 11(11) 10(21) 1(22) KINGS BAY GA 50 X X( X) X( X) X( X) 1( 1) 2( 3) X( 3) KINGS BAY GA 64 X X( X) X( X) X( X) 1( 1) 1( 2) X( 2) WAYCROSS GA 34 X X( X) X( X) X( X) 2( 2) 3( 5) X( 5) MAYPORT NS FL 34 X X( X) X( X) 1( 1) 14(15) 10(25) X(25) MAYPORT NS FL 50 X X( X) X( X) X( X) 2( 2) 3( 5) X( 5) MAYPORT NS FL 64 X X( X) X( X) X( X) 1( 1) 1( 2) X( 2) JACKSONVILLE 34 X X( X) X( X) X( X) 7( 7) 6(13) X(13) GAINESVILLE FL 34 X X( X) X( X) X( X) 5( 5) 2( 7) X( 7) DAYTONA BEACH 34 X X( X) X( X) 1( 1) 17(18) 5(23) X(23) DAYTONA BEACH 50 X X( X) X( X) X( X) 2( 2) 2( 4) X( 4) DAYTONA BEACH 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) THE VILLAGES 34 X X( X) X( X) X( X) 7( 7) 2( 9) 1(10) ORLANDO FL 34 X X( X) X( X) 2( 2) 13(15) 3(18) X(18) ORLANDO FL 50 X X( X) X( X) X( X) 2( 2) X( 2) X( 2) ORLANDO FL 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) COCOA BEACH FL 34 X X( X) X( X) 9( 9) 28(37) 5(42) X(42) COCOA BEACH FL 50 X X( X) X( X) 1( 1) 8( 9) 1(10) X(10) COCOA BEACH FL 64 X X( X) X( X) X( X) 7( 7) 1( 8) X( 8) PATRICK AFB 34 X X( X) X( X) 9( 9) 28(37) 4(41) 1(42) PATRICK AFB 50 X X( X) X( X) 1( 1) 7( 8) 2(10) X(10) PATRICK AFB 64 X X( X) X( X) X( X) 7( 7) 1( 8) X( 8) FT PIERCE FL 34 X X( X) 1( 1) 16(17) 25(42) 3(45) 1(46) FT PIERCE FL 50 X X( X) X( X) 1( 1) 9(10) 1(11) X(11) FT PIERCE FL 64 X X( X) X( X) 1( 1) 6( 7) 1( 8) X( 8) W PALM BEACH 34 X X( X) 4( 4) 21(25) 18(43) 1(44) X(44) W PALM BEACH 50 X X( X) X( X) 3( 3) 7(10) X(10) X(10) W PALM BEACH 64 X X( X) X( X) 1( 1) 5( 6) 1( 7) X( 7) FT LAUDERDALE 34 X X( X) 5( 5) 17(22) 12(34) 1(35) X(35) FT LAUDERDALE 50 X X( X) X( X) 3( 3) 4( 7) 1( 8) X( 8) FT LAUDERDALE 64 X X( X) X( X) 2( 2) 3( 5) X( 5) X( 5) MIAMI FL 34 X X( X) 1( 1) 8( 9) 8(17) 1(18) X(18) MIAMI FL 50 X X( X) X( X) 1( 1) 1( 2) X( 2) X( 2) MIAMI FL 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) HOMESTEAD ARB 34 X X( X) 1( 1) 5( 6) 6(12) 1(13) X(13) MARATHON FL 34 X X( X) 1( 1) 3( 4) 3( 7) X( 7) X( 7) KEY WEST FL 34 X X( X) X( X) 2( 2) 1( 3) X( 3) X( 3) NAPLES FL 34 X X( X) X( X) 4( 4) 5( 9) 1(10) X(10) FT MYERS FL 34 X X( X) X( X) 1( 1) 5( 6) 1( 7) X( 7) VENICE FL 34 X X( X) X( X) 1( 1) 5( 6) 2( 8) X( 8) TAMPA FL 34 X X( X) X( X) 1( 1) 6( 7) 2( 9) X( 9) CEDAR KEY FL 34 X X( X) X( X) X( X) 4( 4) 2( 6) 1( 7) GRAND BAHAMA 34 X 1( 1) 12(13) 40(53) 14(67) 1(68) X(68) GRAND BAHAMA 50 X X( X) 1( 1) 16(17) 12(29) 1(30) X(30) GRAND BAHAMA 64 X X( X) X( X) 11(11) 7(18) X(18) X(18) NEW PROVIDENCE 34 X 9( 9) 48(57) 16(73) 2(75) X(75) X(75) NEW PROVIDENCE 50 X X( X) 18(18) 20(38) 1(39) X(39) X(39) NEW PROVIDENCE 64 X X( X) 8( 8) 11(19) 1(20) X(20) X(20) ANDROS 34 X 12(12) 39(51) 6(57) 1(58) X(58) X(58) ANDROS 50 X X( X) 14(14) 6(20) 1(21) X(21) X(21) ANDROS 64 X X( X) 7( 7) 4(11) 1(12) X(12) X(12) GREAT EXUMA 34 4 65(69) 16(85) 1(86) X(86) X(86) X(86) GREAT EXUMA 50 X 6( 6) 37(43) 1(44) X(44) X(44) X(44) GREAT EXUMA 64 X 2( 2) 15(17) X(17) X(17) X(17) X(17) SAN SALVADOR 34 7 48(55) 8(63) 1(64) X(64) X(64) X(64) SAN SALVADOR 50 X 2( 2) 3( 5) X( 5) X( 5) X( 5) X( 5) SAN SALVADOR 64 X 1( 1) 1( 2) X( 2) X( 2) X( 2) X( 2) MAYAGUANA 34 70 14(84) 1(85) X(85) X(85) X(85) X(85) MAYAGUANA 50 1 10(11) X(11) X(11) X(11) X(11) X(11) MAYAGUANA 64 X 2( 2) X( 2) X( 2) X( 2) X( 2) X( 2) GRAND TURK 34 84 X(84) X(84) X(84) X(84) X(84) X(84) PORT-AU-PRINCE 34 5 1( 6) X( 6) X( 6) X( 6) X( 6) X( 6) PUERTO PLATA 34 99 X(99) X(99) X(99) X(99) X(99) X(99) PUERTO PLATA 50 42 X(42) X(42) X(42) X(42) X(42) X(42) SANTO DOMINGO 34 99 X(99) X(99) X(99) X(99) X(99) X(99) $$ FORECASTER BROWN
Tropical Storm Isaias Public Advisory Number 10
2020-07-30 22:54:52| National Hurricane Center (Atlantic)
Issued at 500 PM EDT Thu Jul 30 2020 000 WTNT34 KNHC 302054 TCPAT4 BULLETIN Tropical Storm Isaias Advisory Number 10 NWS National Hurricane Center Miami FL AL092020 500 PM EDT Thu Jul 30 2020 ...ISAIAS CONTINUES TO BRING HEAVY RAINFALL AND TROPICAL-STORM-FORCE WINDS TO PORTIONS OF THE DOMINICAN REPUBLIC... ...FORECAST TO BECOME A HURRICANE FRIDAY OR FRIDAY NIGHT... SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...19.5N 70.6W ABOUT 155 MI...250 KM WNW OF PUNTA CANA DOMINICAN REPUBLIC ABOUT 250 MI...400 KM SE OF THE SOUTHEASTERN BAHAMAS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 20 MPH...31 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of the Bahamas has issued a Tropical Storm Warning for the northwest Bahamas. A Tropical Storm Watch has been issued for the east coast of Florida from Ocean Reef northward to Sebastian Inlet. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Dominican Republic entire southern and northern coastlines * North coast of Haiti from Le Mole St Nicholas eastward to the northern border with the Dominican Republic * Turks and Caicos Islands * Southeastern Bahamas including the Acklins, Crooked Island, Long Cay, the Inaguas, Mayaguana, and the Ragged Islands * Central Bahamas, including Cat Island, the Exumas, Long Island, Rum Cay, and San Salvador * Northwestern Bahamas including Andros Island, New Providence, Eleuthera, Abacos Islands, Berry Islands, Grand Bahamas Island, and Bimini A Tropical Storm Watch is in effect for... * East coast of Florida from Ocean Reef to Sebastian Inlet The Tropical Storm Warnings for the central and northwest Bahamas may be upgraded to Hurricane Warnings this evening or tonight. Interests elsewhere along the southeast coast of the United States should monitor the progress of this system. Additional watches or warnings may be required for a portion of the Florida peninsula tonight or Friday. 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. 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 PM EDT (2100 UTC), the center of Tropical Storm Isaias was located near latitude 19.5 North, longitude 70.6 West. Isaias is moving toward the northwest near 20 mph (31 km/h) and a northwestward motion with some decrease in forward speed is expected over the next couple of days. On the forecast track, the center of Isaias will move near the Southeastern Bahamas by late tonight. Isaias is forecast to be near the Central Bahamas Friday night and move near or over the Northwest Bahamas and near South Florida on Saturday. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Strengthening is forecast during the next day or so, and Isaias is forecast to become a hurricane on Friday or Friday night. Tropical-storm-force winds extend outward up to 240 miles (390 km) from the center. The estimated minimum central pressure based on surface observations in the Dominican Republic is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Isaias 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. STORM SURGE: A dangerous storm surge will raise water levels by as much as 3 to 5 feet above normal tide levels in areas of onshore flow in the central and northwest Bahamas. Storm surge will raise water level by as much as 1 to 3 ft above normal tide levels in the southeastern Bahamas. WIND: Tropical storm conditions will continue to spread across portions of the Dominican Republic, Haiti, the southeastern Bahamas and Turks and Caicos within the warning area tonight. Tropical storm conditions are expected to begin in the central Bahamas Friday morning and spread into the northwestern Bahamas beginning late Friday. Hurricane conditions are expected within portions of the the central and northwestern Bahamas Friday night and Saturday. Tropical storm conditions are possible in the watch area in Florida beginning Saturday. RAINFALL: Isaias is expected to produce the following rain accumulations: Puerto Rico, Dominican Republic and northern Haiti: 4 to 8 inches, with isolated maximum totals of 12 inches. Bahamas, Turks and Caicos: 4 to 8 inches. Cuba: 1 to 2 inches, with isolated maximum totals of 4 inches. These rainfall amounts will lead to life-threatening flash flooding and mudslides, as well as river flooding. Urban and small stream flooding is expected for the U.S. Virgin Islands, eastern and southwestern Puerto Rico, and Hispaniola. Heavy rains associated with Isaias may begin to affect eastern Florida over the weekend. This rain could result in isolated flash and urban flooding, especially in low-lying and poorly drained areas. SURF: Swells generated by Isaias are affecting portions of the Leeward Islands, the Virgin Islands, Puerto Rico, the Dominican Republic, the Turks and Caicos Islands and the southeastern Bahamas. These swells will spread along the coast of Cuba and into the central and northwestern Bahamas over the next day or two. 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 800 PM EDT. Next complete advisory at 1100 PM EDT. $$ Forecaster Brown
Tags: number
public
storm
advisory
Sites : [1059] [1060] [1061] [1062] [1063] [1064] [1065] [1066] [1067] [1068] [1069] [1070] [1071] [1072] [1073] [1074] [1075] [1076] [1077] [1078] next »