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Tropical Storm Isaac Wind Speed Probabilities Number 20
2018-09-12 16:56:42| National Hurricane Center (Atlantic)
Issued at 1500 UTC WED SEP 12 2018 138 FONT14 KNHC 121456 PWSAT4 TROPICAL STORM ISAAC WIND SPEED PROBABILITIES NUMBER 20 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092018 1500 UTC WED SEP 12 2018 AT 1500Z THE CENTER OF TROPICAL STORM ISAAC WAS LOCATED NEAR LATITUDE 15.0 NORTH...LONGITUDE 54.7 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 WED 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 WED 00Z THU 12Z THU 00Z FRI 12Z FRI 12Z SAT 12Z SUN PERIODS TO TO TO TO TO TO TO 00Z THU 12Z THU 00Z FRI 12Z FRI 12Z SAT 12Z SUN 12Z MON FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT PT GALLINAS 34 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3) PORT-AU-PRINCE 34 X X( X) X( X) X( X) 3( 3) 3( 6) X( 6) CAPE BEATA 34 X X( X) X( X) X( X) 10(10) 4(14) X(14) PUERTO PLATA 34 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3) PONCE PR 34 X X( X) X( X) 2( 2) 1( 3) X( 3) X( 3) VIEQUES PR 34 X X( X) 3( 3) 3( 6) 2( 8) X( 8) X( 8) SAINT THOMAS 34 X X( X) 3( 3) 3( 6) 1( 7) X( 7) X( 7) SAINT CROIX 34 X X( X) 4( 4) 6(10) X(10) X(10) X(10) SAINT MAARTEN 34 X 2( 2) 6( 8) 1( 9) X( 9) X( 9) X( 9) ST KITTS-NEVIS 34 X 3( 3) 14(17) 2(19) X(19) X(19) X(19) BARBUDA 34 X 5( 5) 9(14) 1(15) X(15) X(15) X(15) ANTIGUA 34 X 6( 6) 17(23) 1(24) X(24) X(24) X(24) GUADELOUPE 34 X 12(12) 35(47) 1(48) X(48) X(48) X(48) GUADELOUPE 50 X X( X) 5( 5) 1( 6) X( 6) X( 6) X( 6) AVES 34 X 1( 1) 30(31) 20(51) X(51) X(51) X(51) AVES 50 X X( X) 3( 3) 6( 9) X( 9) X( 9) X( 9) DOMINICA 34 X 10(10) 51(61) X(61) X(61) X(61) X(61) DOMINICA 50 X X( X) 13(13) 1(14) X(14) X(14) X(14) DOMINICA 64 X X( X) 1( 1) X( 1) X( 1) X( 1) X( 1) MARTINIQUE 34 X 7( 7) 29(36) X(36) X(36) X(36) X(36) MARTINIQUE 50 X X( X) 6( 6) X( 6) X( 6) X( 6) X( 6) SAINT LUCIA 34 X 2( 2) 7( 9) X( 9) X( 9) X( 9) X( 9) $$ FORECASTER BLAKE
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