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Hurricane Sam Public Advisory Number 24
2021-09-28 16:32:57| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Tue Sep 28 2021 000 WTNT33 KNHC 281432 TCPAT3 BULLETIN Hurricane Sam Advisory Number 24 NWS National Hurricane Center Miami FL AL182021 1100 AM AST Tue Sep 28 2021 ...SAM REMAINS A POWERFUL CATEGORY 4 HURRICANE OVER THE TROPICAL ATLANTIC... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...17.5N 54.3W ABOUT 580 MI...935 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...130 MPH...215 KM/H PRESENT MOVEMENT...NW OR 305 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...952 MB...28.12 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the eye of Hurricane Sam was located near latitude 17.5 North, longitude 54.3 West. Sam is moving toward the northwest near 8 mph (13 km/h) and this motion with an increase in forward is expected during the next couple of days. A turn toward the north is forecast to occur by Friday. On the forecast track, Sam will pass well to the east of the northern Leeward Islands through Wednesday. Maximum sustained winds remain near 130 mph (215 km/h) with higher gusts. Sam is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity are expected during the next couple of days, but Sam is forecast to remain a major hurricane through late this week. Hurricane-force winds extend outward up to 40 miles (65 km) from the center and tropical-storm-force winds extend outward up to 140 miles (220 km). The estimated minimum central pressure is 952 mb (28.12 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Sam can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC. SURF: Swells generated by Sam will impact the Lesser Antilles during the next several days. Swells are expected to reach Bermuda and the Bahamas in a couple of days, and then spread to the United States east coast late this week. 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 500 PM AST. $$ Forecaster Cangialosi
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