Heavy Rainfall and Severe Thunderstorms Possible Across the Central U.S.; Hurricane Lane Continues Westward Across the Central Pacific

An area of low pressure moving across the Central U.S. will continue to bring heavy rainfall and flash flooding across parts of that region, along with the threat for severe thunderstorms through this evening. Meanwhile, swells from Hurricane Lane are reaching parts of Hawaii today, with some additional impacts possible later this week, depending on the storm's track.
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Hazardous Weather Conditions

Last Update: 428 PM EDT Mon Aug 20 2018

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Key West, FL Local Forecast Office

33NM SSE Molasses Reef Light FL

Marine Zone Forecast


Synopsis: A western Atlantic ridge axis will extend across the Florida peninsula this today through Thursday, before slowly lifting northward thereafter.

The Approximate Shoreward Edge of the Gulf Stream as of August 18...

3 NM South of Dry Tortugas Light...on Loggerhead Key. 20 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 13 NM South of Sand Key Light...off Key West. 4 NM South of Looe Key...off Big Pine Key. 5 NM South of Sombrero Key Light...off Marathon. 1 NM Southeast of Alligator Reef Light...off Islamorada. 1 NM Southeast of Molasses Reef Light...off Key Largo. Less than 1 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

Tonight
East winds 10 to 15 knots. Seas 2 to 4 feet. isolated showers and thunderstorms in the evening, becoming scattered late.
Tuesday
East winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated thunderstorms.
Tuesday Night
East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated thunderstorms.
Wednesday And Wednesday Night
East winds 5 to 10 knots. Seas 1 to 3 feet. Scattered showers and isolated thunderstorms.
Thursday
East winds 5 to 10 knots. Seas 1 to 2 feet. Scattered showers and isolated thunderstorms.
Thursday Night And Friday
East to southeast winds near 10 knots. seas 1 to 3 feet. Scattered showers and isolated thunderstorms.
Friday Night And Saturday
East to southeast winds 10 to 15 knots. seas 2 to 3 feet. Scattered showers and isolated thunderstorms.
Saturday Night
East to southeast winds increasing to 15 to 20 knots. Seas building to 5 feet. Scattered showers and isolated thunderstorms.
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ABOUT THIS FORECAST

Last Update: 428 PM EDT Mon Aug 20 2018
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