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Hurricane GASTON Public Advisory Number 38

2016-09-01 04:54:00| National Hurricane Center (Atlantic)

Issued at 1100 PM AST WED AUG 31 2016 000 WTNT32 KNHC 010253 TCPAT2 BULLETIN HURRICANE GASTON ADVISORY NUMBER 38 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 1100 PM AST WED AUG 31 2016 ...TROPICAL STORM CONDITIONS POSSIBLE OVER THE WESTERN AND CENTRAL AZORES ON FRIDAY... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...36.0N 45.4W ABOUT 935 MI...1500 KM W OF FAIAL ISLAND IN THE CENTRAL AZORES ABOUT 1020 MI...1640 KM W OF LAJES AIR BASE IN THE AZORES MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 20 MPH...31 KM/H MINIMUM CENTRAL PRESSURE...970 MB...28.65 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Flores and Corvo in the western Azores * Faial, Pico, Graciosa, Sao Jorge, and Terceira in the central Azores 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, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1100 PM AST (0300 UTC), the center of Hurricane Gaston was located near latitude 36.0 North, longitude 45.4 West. Gaston is moving toward the northeast near 20 mph (31 km/h). A turn toward the east-northeast with an increase in forward speed is expected during the next day or so. On the forecast track, the center of Gaston will move near the western and central Azores on Friday. Maximum sustained winds remain near 105 mph (165 km/h) with higher gusts. Weakening is forecast during the next 48 hours, and Gaston is expected to lose hurricane intensity by early Friday before it reaches the western Azores. Hurricane-force winds extend outward up to 45 miles (75 km) from the center, and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 970 mb (28.65 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are possible in the western and central Azores on Friday. NEXT ADVISORY ------------- Next intermediate advisory at 200 AM AST. Next complete advisory at 500 AM AST. $$ Forecaster Berg

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Hurricane GASTON Wind Speed Probabilities Number 38

2016-09-01 04:53:54| National Hurricane Center (Atlantic)

Issued at 0300 UTC THU SEP 01 2016 000 FONT12 KNHC 010253 PWSAT2 HURRICANE GASTON WIND SPEED PROBABILITIES NUMBER 38 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 0300 UTC THU SEP 01 2016 AT 0300Z THE CENTER OF HURRICANE GASTON WAS LOCATED NEAR LATITUDE 36.0 NORTH...LONGITUDE 45.4 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 90 KTS...105 MPH...165 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 00Z 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 64 KT ARE SHOWN WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 00Z THU 12Z THU 00Z FRI 12Z FRI 00Z SAT 00Z SUN 00Z MON PERIODS TO TO TO TO TO TO TO 12Z THU 00Z FRI 12Z FRI 00Z SAT 00Z SUN 00Z MON 00Z TUE FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT SANTA CRUZ AZO 34 X 2( 2) 36(38) 21(59) 2(61) X(61) X(61) SANTA CRUZ AZO 50 X X( X) 7( 7) 11(18) 1(19) X(19) X(19) SANTA CRUZ AZO 64 X X( X) 1( 1) 2( 3) X( 3) X( 3) X( 3) PONTA DELGADA 34 X X( X) X( X) 4( 4) 4( 8) X( 8) X( 8) $$ FORECASTER BERG

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Hurricane GASTON Forecast Advisory Number 38

2016-09-01 04:53:30| National Hurricane Center (Atlantic)

Issued at 0300 UTC THU SEP 01 2016 000 WTNT22 KNHC 010253 TCMAT2 HURRICANE GASTON FORECAST/ADVISORY NUMBER 38 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 0300 UTC THU SEP 01 2016 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WATCH IS IN EFFECT FOR... * FLORES AND CORVO IN THE WESTERN AZORES * FAIAL...PICO...GRACIOSA...SAO JORGE...AND TERCEIRA IN THE CENTRAL AZORES A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. HURRICANE CENTER LOCATED NEAR 36.0N 45.4W AT 01/0300Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 55 DEGREES AT 17 KT ESTIMATED MINIMUM CENTRAL PRESSURE 970 MB EYE DIAMETER 25 NM MAX SUSTAINED WINDS 90 KT WITH GUSTS TO 110 KT. 64 KT....... 40NE 40SE 40SW 30NW. 50 KT....... 70NE 90SE 60SW 50NW. 34 KT.......130NE 150SE 130SW 90NW. 12 FT SEAS..210NE 210SE 240SW 270NW. 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 36.0N 45.4W AT 01/0300Z AT 01/0000Z CENTER WAS LOCATED NEAR 35.6N 46.3W FORECAST VALID 01/1200Z 37.2N 42.1W MAX WIND 80 KT...GUSTS 100 KT. 64 KT... 30NE 40SE 40SW 25NW. 50 KT... 60NE 90SE 60SW 50NW. 34 KT...130NE 150SE 140SW 90NW. FORECAST VALID 02/0000Z 38.2N 37.5W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 20NE 35SE 30SW 0NW. 50 KT... 60NE 70SE 60SW 50NW. 34 KT...120NE 140SE 140SW 90NW. FORECAST VALID 02/1200Z 38.7N 33.3W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 50NE 60SE 50SW 30NW. 34 KT...100NE 130SE 120SW 80NW. FORECAST VALID 03/0000Z 39.2N 30.3W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 90NE 90SE 80SW 50NW. FORECAST VALID 04/0000Z 42.1N 24.9W...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 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 05/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 36.0N 45.4W NEXT ADVISORY AT 01/0900Z $$ FORECASTER BERG

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Hurricane GASTON Graphics

2016-09-01 01:40:41| National Hurricane Center (Atlantic)

5-Day Uncertainty Track last updated Wed, 31 Aug 2016 23:40:41 GMT Wind Speed Probabilities last updated Wed, 31 Aug 2016 21:07:41 GMT

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Summary for Hurricane GASTON (AT2/AL072016)

2016-09-01 01:39:49| National Hurricane Center (Atlantic)

...GASTON MOVING NORTHEASTWARD OVER THE CENTRAL ATLANTIC... As of 8:00 PM AST Wed Aug 31 the center of GASTON was located near 35.6, -46.5 with movement NE at 18 mph. The minimum central pressure was 969 mb with maximum sustained winds of about 105 mph.

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