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Hurricane Sam Public Advisory Number 18
2021-09-27 04:49:03| National Hurricane Center (Atlantic)
Issued at 1100 PM AST Sun Sep 26 2021 000 WTNT33 KNHC 270248 TCPAT3 BULLETIN Hurricane Sam Advisory Number 18 NWS National Hurricane Center Miami FL AL182021 1100 PM AST Sun Sep 26 2021 ...HURRICANE HUNTER AIRCRAFT FINDS SAM HAS PEAKED IN INTENSITY... ...EXPECTED TO REMAIN A MAJOR HURRICANE FOR SEVERAL DAYS... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...14.7N 50.8W ABOUT 850 MI...1365 KM ESE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...145 MPH...230 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...943 MB...27.85 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 by a NOAA Hurricane Hunter aircraft near latitude 14.7 North, longitude 50.8 West. Sam is moving toward the northwest near 7 mph (11 km/h), and this motion is expected to continue for the next few days, along with a gradual increase in forward speed beginning around midweek. Data from the reconnaissance aircraft indicate that maximum sustained winds are near 145 mph (230 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 day or so. Thereafter, slow weakening is forecast. However, Sam is still expected to remain a major hurricane through midweek. Sam remains a small tropical cyclone. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km). The estimated minimum central pressure based on recent reports from the aircraft is 943 mb (27.85 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Sam are forecast to reach the Lesser Antilles early 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 Stewart
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