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Tropical Storm Arthur Wind Speed Probabilities Number 9
2020-05-18 22:39:41| National Hurricane Center (Atlantic)
Issued at 2100 UTC MON MAY 18 2020 610 FONT11 KNHC 182039 PWSAT1 TROPICAL STORM ARTHUR WIND SPEED PROBABILITIES NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL AL012020 2100 UTC MON MAY 18 2020 AT 2100Z THE CENTER OF TROPICAL STORM ARTHUR WAS LOCATED NEAR LATITUDE 36.1 NORTH...LONGITUDE 73.9 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 MON 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 MON 06Z TUE 18Z TUE 06Z WED 18Z WED 18Z THU 18Z FRI PERIODS TO TO TO TO TO TO TO 06Z TUE 18Z TUE 06Z WED 18Z WED 18Z THU 18Z FRI 18Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT NANTUCKET MA 34 1 1( 2) 1( 3) X( 3) X( 3) X( 3) X( 3) OCEAN CITY MD 34 1 2( 3) X( 3) X( 3) X( 3) X( 3) X( 3) CAPE HATTERAS 34 2 1( 3) X( 3) X( 3) X( 3) X( 3) X( 3) BERMUDA 34 X X( X) 5( 5) 7(12) 23(35) X(35) X(35) BERMUDA 50 X X( X) X( X) 2( 2) 5( 7) X( 7) X( 7) BERMUDA 64 X X( X) X( X) X( X) 2( 2) X( 2) X( 2) $$ FORECASTER BROWN
Summary for Tropical Storm Arthur (AT1/AL012020)
2020-05-18 22:39:07| National Hurricane Center (Atlantic)
...ARTHUR CONTINUES TO MOVE AWAY FROM THE NORTH CAROLINA OUTER BANKS... As of 5:00 PM EDT Mon May 18 the center of Arthur was located near 36.1, -73.9 with movement NE at 16 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 50 mph.
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Tropical Storm Arthur Public Advisory Number 9
2020-05-18 22:39:07| National Hurricane Center (Atlantic)
Issued at 500 PM EDT Mon May 18 2020 000 WTNT31 KNHC 182039 TCPAT1 BULLETIN Tropical Storm Arthur Advisory Number 9 NWS National Hurricane Center Miami FL AL012020 500 PM EDT Mon May 18 2020 ...ARTHUR CONTINUES TO MOVE AWAY FROM THE NORTH CAROLINA OUTER BANKS... SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...36.1N 73.9W ABOUT 110 MI...175 KM NE OF CAPE HATTERAS NORTH CAROLINA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NE OR 45 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: All Tropical Storm Warnings have been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: There are no coastal watches or warnings in effect. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 500 PM EDT (2100 UTC), the center of Tropical Storm Arthur was located near latitude 36.1 North, longitude 73.9 West. Arthur is moving toward the northeast near 16 mph (26 km/h). A turn toward the east-northeast is expected tonight, followed by a turn toward the east on Tuesday. A slower southeast or south-southeast motion is expected to begin Tuesday night and continue through Wednesday. On the forecast track, the center of Arthur will continue to move away from the east coast of the United States. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. While some strengthening is forecast during the next 24 hours, Arthur is likely to lose its tropical characteristics late by tonight or Tuesday. Tropical-storm-force winds extend outward up to 115 miles (185 km) primarily to the east of the center. NOAA Buoy 44014 located about 50 miles north west of Arthur's center recently measured a sustained wind of 38 mph (61 km/h) and a gust to 45 mph (72 km/h). The estimated minimum central pressure is 993 mb (29.33 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Arthur are expected to affect portions of the mid-Atlantic and southeast U.S. coasts during the next day or two. These swells could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 PM EDT. $$ Forecaster Brown
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Tropical Storm Arthur Forecast Advisory Number 9
2020-05-18 22:39:07| National Hurricane Center (Atlantic)
Issued at 2100 UTC MON MAY 18 2020 000 WTNT21 KNHC 182039 TCMAT1 TROPICAL STORM ARTHUR FORECAST/ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL AL012020 2100 UTC MON MAY 18 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... ALL TROPICAL STORM WARNINGS HAVE BEEN DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 36.1N 73.9W AT 18/2100Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 45 DEGREES AT 14 KT ESTIMATED MINIMUM CENTRAL PRESSURE 993 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT.......100NE 100SE 0SW 40NW. 12 FT SEAS.. 90NE 120SE 60SW 90NW. 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 36.1N 73.9W AT 18/2100Z AT 18/1800Z CENTER WAS LOCATED NEAR 35.6N 74.6W FORECAST VALID 19/0600Z 36.9N 71.6W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 0SE 0SW 0NW. 34 KT...120NE 120SE 80SW 100NW. FORECAST VALID 19/1800Z 37.0N 68.7W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 60NE 0SE 0SW 60NW. 34 KT...180NE 120SE 90SW 160NW. FORECAST VALID 20/0600Z 36.2N 66.8W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 60NE 0SE 0SW 60NW. 34 KT...200NE 90SE 90SW 200NW. FORECAST VALID 20/1800Z 34.8N 65.5W...POST-TROP/EXTRATROP MAX WIND 45 KT...GUSTS 55 KT. 34 KT...180NE 60SE 60SW 180NW. FORECAST VALID 21/0600Z 33.0N 64.8W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. 34 KT...150NE 0SE 0SW 150NW. FORECAST VALID 21/1800Z 31.5N 64.8W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. 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 22/1800Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 36.1N 73.9W NEXT ADVISORY AT 19/0300Z $$ FORECASTER BROWN
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Summary for Tropical Storm Arthur (AT1/AL012020)
2020-05-18 19:38:38| National Hurricane Center (Atlantic)
...CENTER OF ARTHUR MOVING AWAY FROM NORTH CAROLINA WHILE TROPICAL-STORM-FORCE WINDS CONTINUE OVER PARTS OF THE OUTER BANKS... As of 2:00 PM EDT Mon May 18 the center of Arthur was located near 35.6, -74.7 with movement NE at 16 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 50 mph.
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