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| #1063225 (Received by flhurricane at: 10:41 AM 25.Sep.2021) TCPAT3 BULLETIN Hurricane Sam Advisory Number 12 NWS National Hurricane Center Miami FL AL182021 1100 AM AST Sat Sep 25 2021 ...SMALL BUT DANGEROUS SAM NOW A MAJOR HURRICANE... ...SOME ADDITIONAL STRENGTHENING EXPECTED THIS WEEKEND... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...12.9N 47.6W ABOUT 1095 MI...1760 KM ESE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...960 MB...28.35 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Hurricane Sam was located near latitude 12.9 North, longitude 47.6 West. Sam is moving toward the west-northwest near 10 mph (17 km/h). A slower motion to the west-northwest is expected over the weekend, followed by a turn to the northwest on Monday. Maximum sustained winds have increased to near 120 mph (195 km/h) with higher gusts. Sam is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Additional strengthening is expected over the next day or so, and Sam is forecast to become a category 4 hurricane by Sunday. Some fluctuations in the hurricane`s intensity are possible early next week. Sam is a small hurricane. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 105 miles (165 km). The estimated minimum central pressure is 960 mb (28.35 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Sam are forecast to reach the Lesser Antilles early next 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 Latto |
