Heavy Rain and Flooding, and Significant Wintry Impacts for the Central U.S.

A strong frontal boundary slowing as it moves into the central U.S. will tap into deep moisture to produce heavy rain and flooding, and a significant ice storm. Rain totals up to 7 inches, with isolated higher amounts, will be possible. Significant icing up to a third of an inch may occur in the central Plains and Middle Missouri Valley. Continued cold weather with snow to low elevations out west.
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Last Update: 431 PM EST Tue Feb 20 2018

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Key West, FL Local Forecast Office

45NM SSW Rebecca Shoal Light FL

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT...
Synopsis: An Atlantic high pressure ridge will extend across the Southeastern United States tonight through Friday. This ridge of high pressure will shift southward Friday night through Saturday night.

The Approximate Shoreward Edge of the Gulf Stream current, as of February 17th, 2018...

31 NM South of Dry Tortugas Light, on Loggerhead Key. 10 NM South of Cosgrove Shoal Light, off the Marquesas Keys. 3 NM South of Sand Key Light, off Key West. 7 NM South of Looe Key, off Big Pine Key. 9 NM South of Sombrero Key Light, off Marathon. 13 NM Southeast of Alligator Reef Light, off Islamorada. 12 NM Southeast of Molasses Reef Light, off Key Largo. 6 NM East of Carysfort Reef Light, off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

Tonight
East to southeast winds near 20 knots. Seas 6 to 8 feet.
Wednesday
East winds near 20 knots. Seas 5 to 8 feet.
Wednesday Night
East winds 20 to 25 knots. Seas 5 to 8 feet. Isolated showers.
Thursday
East winds near 20 knots. Seas 5 to 8 feet. Scattered showers.
Thursday Night
East to southeast winds near 20 knots. Seas 5 to 8 feet. Scattered showers.
Friday
East to southeast winds near 20 knots. Seas 4 to 7 feet. Isolated showers.
Friday Night
East to southeast to 25t winds 15 to 20 knots. seas 4 to 6 feet. Isolated showers.
Saturday And Saturday Night
East to southeast winds 15 to 20 knots. Seas 4 to 6 feet. Isolated showers.
Sunday And Sunday Night
East to southeast winds 10 to 15 knots. Seas 2 to 4 feet. Isolated showers.
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ABOUT THIS FORECAST

Last Update: 431 PM EST Tue Feb 20 2018
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