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| #1063556 (Received by flhurricane at: 10:42 PM 27.Sep.2021) TCPAT3 BULLETIN Hurricane Sam Advisory Number 22 NWS National Hurricane Center Miami FL AL182021 1100 PM AST Mon Sep 27 2021 ...SAM EXPECTED TO REMAIN A POWERFUL HURRICANE FOR SEVERAL MORE DAYS... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...16.8N 53.2W ABOUT 660 MI...1060 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...956 MB...28.23 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Hurricane Sam was located near latitude 16.8 North, longitude 53.2 West. Sam is moving toward the northwest near 9 mph (15 km/h), and this motion is expected to continue for the next few days, with an increase in forward speed beginning on Thursday. A turn to the north is expected by Friday. On the forecast track, Sam will pass well to the northeast of the northern Leeward Islands Wednesday and Thursday. Data from a NOAA Hurricane Hunter plane indicate that maximum sustained winds remain near 120 mph (195 km/h) with higher gusts. Sam is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. The hurricane could strengthen some overnight, and Sam is anticipated to be a category 3 or 4 hurricane for the next several days. Hurricane-force winds extend outward up to 40 miles (65 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km). The estimated minimum central pressure from NOAA aircraft data is 956 mb (28.23 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 for the next several days. Swells are expected to reach Bermuda and the Bahamas mid-to-late week, 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 AM AST. $$ Forecaster Blake |
