Severe Thunderstorm and Flash Flood Threats Early This Week

The threat for severe thunderstorms and flash flooding are likely from the central and southern Plains into the Ohio/Tennessee Valleys and Mid-Atlantic early this week. A couple of slow moving systems will track west to east, while a plume of moisture focuses near a stalled front. Some of the thunderstorms could contain damaging winds and large hail, while flood watches extend from MO/IL to DE/NJ.
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Hazardous Weather Conditions

Last Update: 1033 AM EDT Mon Jun 17 2019

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Key West, FL Local Forecast Office

3NM N Pulaski Shoal Light FL

Marine Zone Forecast


Synopsis: The western extent of the subtropical ridge will reach west across Florida through tonight. The ridge axis will settle southward across South Florida and the Florida Keys Tuesday or Tuesday night, before meandering thereafter.

The Approximate Shoreward Edge of the Gulf Stream as of June 15...

35 NM South of Dry Tortugas Light...on Loggerhead Key. 21 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 14 NM South of Sand Key Light...off Key West. 9 NM South of Looe Key...off Big Pine Key. 7 NM South of Sombrero Key Light...off Marathon. 6 NM Southeast of Alligator Reef Light...off Islamorada. 6 NM Southeast of Molasses Reef Light...off Key Largo. 4 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office

This Afternoon
Southeast to south winds near 15 knots, decreasing to near 10 knots. Seas 2 to 4 feet, subsiding to around 2 feet. Winds and seas higher around scattered showers and thunderstorms developing.
Tonight
Southeast to south winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and thunderstorms.
Tuesday
Southeast to south winds decreasing to 5 to 10 knots. seas 1 to 2 feet. Scattered showers and thunderstorms.
Tuesday Night And Wednesday
Southeast to south winds 5 to 10 knots. Seas around 1 foot. Scattered showers and thunderstorms.
Wednesday Night Through Thursday Night
Southeast winds 5 to 10 knots. Seas around 1 foot. Isolated showers and thunderstorms.
Friday And Friday Night
East to southeast winds 5 to 10 knots. Seas around 1 foot. Isolated showers and thunderstorms.
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ABOUT THIS FORECAST

Last Update: 1033 AM EDT Mon Jun 17 2019
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