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| #872921 (Received by flhurricane at: 4:47 AM 25.Aug.2016) 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 |
