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Hurricane Sam Public Advisory Number 44
2021-10-03 16:46:34| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Sun Oct 03 2021 000 WTNT33 KNHC 031446 TCPAT3 BULLETIN Hurricane Sam Advisory Number 44 NWS National Hurricane Center Miami FL AL182021 1100 AM AST Sun Oct 03 2021 ...SAM MOVING NORTHEASTWARD OVER THE OPEN NORTH ATLANTIC... ...EXPECTED TO BECOME A LARGE AND POWERFUL POST-TROPICAL LOW PRESSURE SYSTEM ON MONDAY... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...37.7N 54.6W ABOUT 625 MI...1010 KM S OF CAPE RACE NEWFOUNDLAND MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H PRESENT MOVEMENT...NE OR 50 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...964 MB...28.47 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 37.7 North, longitude 54.6 West. Sam is moving toward the northeast near 16 mph (26 km/h). A northeastward motion at a faster forward speed is expected over the next couple of days. The cyclone is forecast to slow down over the north Atlantic around midweek. Maximum sustained winds are near 100 mph (155 km/h) with higher gusts. Gradual weakening is forecast during the next few days, and Sam is expected to transition into a powerful post-tropical cyclone on Monday. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 240 miles (390 km). The estimated minimum central pressure is 964 mb (28.47 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. SURF: Swells generated by Sam will impact the northern Leeward Islands, the Greater Antilles, the Bahamas, the eastern United States and Atlantic Canada for the next couple of days. 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 Brown [ more ]
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