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Hurricane GASTON Public Advisory Number 11

2016-08-25 10:34:49| National Hurricane Center (Atlantic)

Issued at 500 AM AST THU AUG 25 2016 000 WTNT32 KNHC 250834 TCPAT2 BULLETIN HURRICANE GASTON ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 500 AM AST THU AUG 25 2016 ...GASTON EXPECTED TO WEAKEN BACK TO A TROPICAL STORM LATER TODAY... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...19.5N 43.3W ABOUT 1225 MI...1970 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 AM AST (0900 UTC), the center of Hurricane Gaston was located near latitude 19.5 North, longitude 43.3 West. Gaston is moving toward the northwest near 17 mph (28 km/h), and this general motion is expected to continue through Friday. A turn toward the west-northwest is forecast Friday night. Data from a NASA/NOAA Global Hawk unmanned aircraft indicate that maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Some weakening is forecast during the next day or so. Hurricane-force winds extend outward up to 25 miles (35 km) from the center, and tropical-storm-force winds extend outward up to 90 miles (150 km). The estimated minimum central pressure from the aircraft data is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Berg

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Hurricane GASTON Forecast Advisory Number 11

2016-08-25 10:34:21| National Hurricane Center (Atlantic)

Issued at 0900 UTC THU AUG 25 2016 000 WTNT22 KNHC 250833 TCMAT2 HURRICANE GASTON FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 0900 UTC THU AUG 25 2016 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 19.5N 43.3W AT 25/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 15 KT ESTIMATED MINIMUM CENTRAL PRESSURE 988 MB MAX SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT. 64 KT....... 20NE 0SE 0SW 0NW. 50 KT....... 40NE 40SE 20SW 30NW. 34 KT....... 80NE 80SE 40SW 50NW. 12 FT SEAS..150NE 90SE 60SW 120NW. 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 19.5N 43.3W AT 25/0900Z AT 25/0600Z CENTER WAS LOCATED NEAR 18.9N 42.7W FORECAST VALID 25/1800Z 21.1N 44.8W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 40SE 20SW 30NW. 34 KT... 90NE 90SE 40SW 60NW. FORECAST VALID 26/0600Z 23.4N 46.9W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 30SE 0SW 30NW. 34 KT...100NE 90SE 40SW 70NW. FORECAST VALID 26/1800Z 25.3N 49.4W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 30SE 0SW 40NW. 34 KT...110NE 90SE 50SW 80NW. FORECAST VALID 27/0600Z 26.7N 52.0W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 50NE 40SE 0SW 40NW. 34 KT...120NE 90SE 70SW 100NW. FORECAST VALID 28/0600Z 29.1N 56.0W MAX WIND 70 KT...GUSTS 85 KT. 50 KT... 60NE 60SE 40SW 50NW. 34 KT...140NE 120SE 90SW 110NW. 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 29/0600Z 31.0N 58.0W MAX WIND 80 KT...GUSTS 100 KT. OUTLOOK VALID 30/0600Z 32.5N 57.5W MAX WIND 85 KT...GUSTS 105 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.5N 43.3W NEXT ADVISORY AT 25/1500Z $$ FORECASTER BERG

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Summary for Hurricane GASTON (AT2/AL072016)

2016-08-25 06:16:03| National Hurricane Center (Atlantic)

...GASTON BECOMES THE THIRD HURRICANE OF THE ATLANTIC SEASON... As of 12:15 AM AST Thu Aug 25 the center of GASTON was located near 18.7, -42.2 with movement NW at 17 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 75 mph.

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Hurricane GASTON Update Statement

2016-08-25 06:16:03| National Hurricane Center (Atlantic)

Issued at 1215 AM AST THU AUG 25 2016 000 WTNT62 KNHC 250415 TCUAT2 HURRICANE GASTON TROPICAL CYCLONE UPDATE NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 1215 AM AST THU AUG 25 2016 ...GASTON BECOMES THE THIRD HURRICANE OF THE ATLANTIC SEASON... Dropsonde data from a NASA/NOAA Global Hawk mission indicate that Gaston has strengthened to a hurricane. The maximum winds are estimated to be 75 mph (120 km/h) with higher gusts. SUMMARY OF 1215 AM AST...0415 UTC...INFORMATION ---------------------------------------------- LOCATION...18.7N 42.2W ABOUT 1215 MI...1955 KM W OF THE CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.47 INCHES $$ Forecaster Berg

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