Heavy Rainfall Expected Over the Southeast and Mid-Atlantic; Unsettled in the Pacific Northwest, Rockies, and Plains

Locally heavy rainfall and a few severe thunderstorms are possible over the Southeast and Mid Atlantic as the remnants of Nestor move across the region through Sunday. Elsewhere, periods of rain and snow can be expected over the Pacific Northwest, Plains, and Upper Mississippi Valley while scattered strong to severe thunderstorms affect parts of Texas, Arkansas, and Oklahoma by late Sunday.
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Hazardous Weather Conditions

Last Update: 1034 PM EDT Sat Oct 19 2019

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Key West, FL Local Forecast Office

7NM E Vaca Cut FL

Marine Zone Forecast


Synopsis: An strong area of low pressure will continue moving quickly east northeast across the Okefenokee Swamp Basin tonight, reaching Eastern South Carolina by Sunday morning, then offshore of the North Carolina Outer Banks by late afternoon and out to sea Sunday night. A ridge of high pressure presently near Cuba will gradually lift northwards Sunday, and becoming established across Southern Florida Monday through Tuesday night. A stronger ridge will build across Florida and the Florida Keys for the second half of this week.

The Approximate Shoreward Edge of the Gulf Stream as of October 19th, 2019...

45 NM South of Dry Tortugas Light...on Loggerhead Key. 16 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 6 NM South of Sand Key Light...off Key West. 2 NM South of Looe Key...off Big Pine Key. 4 NM South of Sombrero Key Light...off Marathon. 4 NM Southeast of Alligator Reef Light...off Islamorada. Less than 1 NM Southeast of Molasses Reef Light...off Key Largo. 3 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

Overnight
South winds near 15 knots, decreasing to 5 to 10 knots. Seas 1 to 3 feet, decreasing to around 1 foot. Nearshore waters a moderate chop, becoming smooth to a light chop. scattered showers and isolated thunderstorms developing.
Sunday
Southwest winds 5 to 10 knots. Seas around 1 foot. nearshore waters smooth to a light chop. Isolated showers.
Sunday Night Through Monday Night
Southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth. Isolated showers.
Tuesday
East to southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms.
Tuesday Night
East winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms.
Wednesday
East winds increasing to near 15 knots. Seas building to 1 to 3 feet. Nearshore waters becoming a moderate chop. Scattered showers.
Wednesday Night Through Thursday Night
East winds 15 to 20 knots. Seas 2 to 4 feet. Nearshore waters choppy. Scattered showers.
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ABOUT THIS FORECAST

Last Update: 1034 PM EDT Sat Oct 19 2019
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