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Tropical Storm Isaac Wind Speed Probabilities Number 4
2024-09-26 22:52:00| National Hurricane Center (Atlantic)
Issued at 2100 UTC THU SEP 26 2024 000 FONT15 KNHC 262051 PWSAT5 TROPICAL STORM ISAAC WIND SPEED PROBABILITIES NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102024 2100 UTC THU SEP 26 2024 AT 2100Z THE CENTER OF TROPICAL STORM ISAAC WAS LOCATED NEAR LATITUDE 37.5 NORTH...LONGITUDE 50.6 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 45 KTS...50 MPH...85 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 SANTA CRUZ AZO 34 X X( X) X( X) 1( 1) 11(12) 3(15) X(15) $$ FORECASTER D. ZELINSKY
Category:Transportation and Logistics
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Summary for Tropical Storm Isaac (AT5/AL102024)
2024-09-26 22:51:31| National Hurricane Center (Atlantic)
...ISAAC CONTINUING EASTWARD WITH NO CHANGE IN STRENGTH... As of 5:00 PM AST Thu Sep 26 the center of Isaac was located near 37.5, -50.6 with movement E at 10 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 50 mph.
Category: Transportation and Logistics
Tropical Storm Isaac Public Advisory Number 4
2024-09-26 22:51:31| National Hurricane Center (Atlantic)
Issued at 500 PM AST Thu Sep 26 2024 231 WTNT35 KNHC 262051 TCPAT5 BULLETIN Tropical Storm Isaac Advisory Number 4 NWS National Hurricane Center Miami FL AL102024 500 PM AST Thu Sep 26 2024 ...ISAAC CONTINUING EASTWARD WITH NO CHANGE IN STRENGTH... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...37.5N 50.6W ABOUT 1285 MI...2070 KM W OF THE AZORES ABOUT 880 MI...1415 KM ENE OF BERMUDA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...E OR 80 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...995 MB...29.39 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Tropical Storm Isaac was located near latitude 37.5 North, longitude 50.6 West. Isaac is moving toward the east near 10 mph (17 km/h), and a turn toward the east-northeast is expected by the weekend. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Strengthening is forecast, and Isaac is expected reach or be near hurricane strength by late Friday or early Saturday. Tropical-storm-force winds extend outward up to 60 miles (95 km) from the center. The estimated minimum central pressure is 995 mb (29.39 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Isaac and a large wind fetch from a deep-layer trough are affecting portions of the coast of Bermuda and could spread into the Azores by this weekend. 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 1100 PM AST. $$ Forecaster D. Zelinsky/Bookbinder
Category: Transportation and Logistics