Severe Thunderstorms, Heavy Rain, Gusty Winds, And Flooding Potential From The Southeast U.S. To The Appalachians and Mid Atlantic Region

A slow moving low pressure system will track from the southern U.S. to the Mid Atlantic and Northeast early this week. The system will bring widespread rain, locally heavy from the Deep South to the Mid Atlantic Region. Localized flooding will be possible. In addition, the potential exists for strong to severe thunderstorms capable of damaging wind particularly over the Southeast U.S. into Monday.
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Hazardous Weather Conditions

Last Update: 432 AM EDT Mon Apr 23 2018

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Key West, FL Local Forecast Office

7NM WNW Craig Key FL

Marine Zone Forecast


Synopsis: An expansive area of high pressure covering the entire Eastern United States will slide into the western North Atlantic Ocean over the next several days, as a weak area of low pressure migrates eastward and across the Southeast United States before lifting up the Eastern Seaboard next week. Meanwhile, a trough of low pressure will likely pass through our region late Tuesday night and early Wednesday.

The Approximate Shoreward Edge of the Gulf Stream as of April 21, 2018...

17 NM South of Dry Tortugas Light...on Loggerhead Key. 16 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 21 NM South of Sand Key Light...off Key West. 32 NM South of Looe Key...off Big Pine Key. 36 NM South of Sombrero Key Light...off Marathon. 18 NM Southeast of Alligator Reef Light...off Islamorada. 11 NM Southeast of Molasses Reef Light...off Key Largo. 8 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

Today
Southeast winds near 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light chop. Isolated showers.
Tonight
Southeast to south winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Isolated showers.
Tuesday
South to southwest winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Isolated showers.
Tuesday Night
West to northwest winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered showers.
Wednesday
Northwest winds near 10 knots. Seas 1 to 2 feet. nearshore waters a light chop. Isolated showers.
Wednesday Night
Northwest winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers.
Thursday
Variable winds 5 to 10 knots. Seas 1 foot or less. nearshore waters smooth to a light chop. Isolated showers.
Thursday Night Through Friday Night
Mostly west winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers.
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ABOUT THIS FORECAST

Last Update: 432 AM EDT Mon Apr 23 2018
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