Sam Starting to Strengthen Again

| September 28, 2021 @ 10:29 pm

SUMMARY OF 1100 PM AST…0300 UTC…INFORMATION
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LOCATION…18.4N 55.6W
ABOUT 490 MI…790 KM E OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS…140 MPH…220 KM/H
PRESENT MOVEMENT…NW OR 305 DEGREES AT 9 MPH…15 KM/H
MINIMUM CENTRAL PRESSURE…944 MB…27.88 INCHES

WATCHES AND WARNINGS
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There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK
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At 1100 PM AST (0300 UTC), the eye of Hurricane Sam was located near latitude 18.4 North, longitude 55.6 West. Sam is moving toward the northwest near 9 mph (15 km/h), and this general motion with an increase in forward speed is expected during the next couple of days. A turn toward the north is forecast by Friday. On the forecast track, Sam will pass well to the east and northeast of the northern Leeward Islands through Wednesday.

Maximum sustained winds are near 140 mph (220 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 couple of days, but Sam is forecast to remain a major hurricane through late this week.

Hurricane-force winds extend outward up to 40 miles (65 km) from the center, and tropical-storm-force winds extend outward up to 140 miles (220 km). The estimated minimum central pressure is 944 mb (27.88 inches).

HAZARDS AFFECTING LAND
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SURF: Swells generated by Sam will impact the Lesser Antilles during the next several days. Swells are expected to reach Bermuda and the Bahamas in a couple of days, 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.

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About the Author ()

Scott Martin is an operational meteorologist, professional graphic artist, musician, husband, and father. Not only is Scott a member of the National Weather Association, but he is also the Central Alabama Chapter of the NWA president. Scott is also the co-founder of Racecast Weather, which provides forecasts for many racing series across the USA. He also supplies forecasts for the BassMaster Elite Series events including the BassMaster Classic.

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