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Hurricane Sam Public Advisory Number 37A
2021-10-02 01:48:00| National Hurricane Center (Atlantic)
Issued at 800 PM AST Fri Oct 01 2021 000 WTNT33 KNHC 012347 TCPAT3 BULLETIN Hurricane Sam Intermediate Advisory Number 37A NWS National Hurricane Center Miami FL AL182021 800 PM AST Fri Oct 01 2021 ...CORE OF SAM NOW EAST-SOUTHEAST OF BERMUDA TONIGHT... ...SWELLS EXPECTED TO REACH THE EAST COAST OF THE U.S. AND ATLANTIC CANADA ON SATURDAY... SUMMARY OF 800 PM AST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...30.7N 61.5W ABOUT 215 MI...345 KM ESE OF BERMUDA MAXIMUM SUSTAINED WINDS...150 MPH...240 KM/H PRESENT MOVEMENT...N OR 5 DEGREES AT 20 MPH...31 KM/H MINIMUM CENTRAL PRESSURE...937 MB...27.67 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Bermuda A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 800 PM AST (0000 UTC), the eye of Hurricane Sam was located near latitude 30.7 North, longitude 61.5 West. Sam is moving moving just east of due north near 20 mph (31 km/h). A turn toward the north-northeast, at a slightly slower forward speed, is expected tonight, followed by a northeastward motion Saturday night through Monday. On the forecast track, the center of Sam will pass well to the east of Bermuda tonight. Maximum sustained winds are near 150 mph (240 km/h) with higher gusts. Sam is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Although fluctuations in intensity are still possible, weakening is forecast during the next couple of days. However, Sam is expected to remain a major hurricane through at least Saturday night. Hurricane-force winds extend outward up to 60 miles (95 km) from the center and tropical-storm-force winds extend outward up to 205 miles (335 km). The estimated minimum central pressure is 937 mb (27.67 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, and on the web at hurricanes.gov/graphics_at3.shtml?key_messages. WIND: Tropical storm conditions are possible on Bermuda beginning tonight or early Saturday. SURF: Swells generated by Sam will impact the northern Leeward Islands, the Greater Antilles, the Bahamas, and Bermuda during the next couple of days. Swells are expected to reach the United States east coast and Atlantic Canada on Saturday. 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 1100 PM AST. $$ Forecaster Beven
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