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Bill Remains Extremely Dangerous Category 4 Hurricane

19.7N 57.5W

August 20th, 2009 Category: Tropical Cyclones

Hurricane Bill - August 19th, 2009

Hurricane Bill - August 19th, 2009

Enhanced image - August 19th, 2009

Three day composite - August 15th, 17th and 19th, 2009

Three day composite (August 15th, 17th and 19th) - Earth View

Three day composite (August 15th, 17th and 19th) - Earth View

Enhanced image - August 19th, 2009

Enhanced image - August 19th, 2009

Bill remains an extremely dangerous Category 4 Hurricane, now moving northwestward.

Interests in the northern Leeward Islands and Bermuda should monitor the progress of Bill.

At 500 pm AST (2100 UTC) the center of hurricane Bill was located near latitude 19.8 north, longitude 57.6 west or about 335 miles (535 km) northeast of the Leeward Islands and about 970 miles (1565 km) south-southeast of Bermuda. Bill is moving toward the northwest near 20 mph (32 km/h) and this general motion is expected for the next day or so with a turn toward the north-northwest forecast by late Friday.

Maximum sustained winds are near 135 mph (215 km/h) with higher gusts. Bill is a category four hurricane on the Saffir-Simpson scale. Some additional strengthening is possible during the next couple of days.

Bill is a large Tropical Cyclone. Hurricane force winds extend outward up to 85 miles (140 km) from the center and Tropical Storm force winds extend outward up to 230 miles (370 km). The latest minimum central pressure reported by an Air Force reserve hurricane hunter aircraft was 947 mb (27.96 inches).

Large swells associated with Bill will be impacting the islands of the northeast Caribbean Sea during the next day or two. Large swells associated with Bill should also begin to affect Bermuda and portions of the Eastern Coast of the United States Friday and Saturday.

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