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Tropical Storm Sebastien Graphics

2019-11-19 16:01:57| National Hurricane Center (Atlantic)

5-Day Uncertainty Track last updated Tue, 19 Nov 2019 15:01:57 GMT Wind Speed Probabilities last updated Tue, 19 Nov 2019 15:01:58 GMT

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Summary for Tropical Storm Sebastien (AT5/AL202019)

2019-11-19 16:01:03| National Hurricane Center (Atlantic)

...TROPICAL STORM SEBASTIEN FORMS... ...EXPECTED TO REMAIN OVER OPEN WATERS... As of 11:00 AM AST Tue Nov 19 the center of Sebastien was located near 20.1, -58.7 with movement NNW at 8 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 45 mph.

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Tropical Storm Sebastien Public Advisory Number 1

2019-11-19 16:01:03| National Hurricane Center (Atlantic)

Issued at 1100 AM AST Tue Nov 19 2019 000 WTNT35 KNHC 191500 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 1 NWS National Hurricane Center Miami FL AL202019 1100 AM AST Tue Nov 19 2019 ...TROPICAL STORM SEBASTIEN FORMS... ...EXPECTED TO REMAIN OVER OPEN WATERS... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...20.1N 58.7W ABOUT 275 MI...445 KM NE OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...NNW OR 330 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Sebastien was located near latitude 20.1 North, longitude 58.7 West. Sebastien is moving toward the north-northwest near 8 mph (13 km/h). A turn to the north is expected on Wednesday followed by a turn to the northeast and an increase in forward speed Wednesday night. Maximum sustained winds are near 45 mph (75 km/h) with higher gusts. Some slight strengthening is possible over the next day or so. Sebastien is expected to become absorbed by a cold front in a couple of days. Tropical-storm-force winds extend outward up to 105 miles (165 km) from the center. The estimated minimum central pressure is 1008 mb (29.77 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Latto

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Tropical Storm Sebastien Wind Speed Probabilities Number 1

2019-11-19 16:01:03| National Hurricane Center (Atlantic)

Issued at 1500 UTC TUE NOV 19 2019 000 FONT15 KNHC 191500 PWSAT5 TROPICAL STORM SEBASTIEN WIND SPEED PROBABILITIES NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL202019 1500 UTC TUE NOV 19 2019 AT 1500Z THE CENTER OF TROPICAL STORM SEBASTIEN WAS LOCATED NEAR LATITUDE 20.1 NORTH...LONGITUDE 58.7 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 40 KTS...45 MPH...75 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 TUE 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 TUE 00Z WED 12Z WED 00Z THU 12Z THU 12Z FRI 12Z SAT PERIODS TO TO TO TO TO TO TO 00Z WED 12Z WED 00Z THU 12Z THU 12Z FRI 12Z SAT 12Z SUN FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER LATTO

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