Heavy Rainfall And Flooding Threat Continues Over The Western Gulf Coast And Midwest; Excessive Heat Widespread Across The Desert Southwest

A slow moving disturbance will continue to generate rounds of rainfall across the western Gulf Coast from Texas to western Louisiana through Thursday. Flooding of low lying and poor drainage areas will be possible. Across the Desert Southwest, triple digit heat with highs exceeding 115 degrees will be possible over portions of southern California, Nevada, and Arizona through Saturday.
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Last Update: 1031 PM EDT Wed Jun 20 2018

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Key West, FL Local Forecast Office

23NM N Smith Shoal Light FL

Marine Zone Forecast


Synopsis: A weak pressure pattern over the Florida Keys coastal waters will result in mainly light to gentle variable winds through Friday. This weekend, Atlantic high pressure will build into the area with winds coming out of the east to southeast.

The Approximate Shoreward Edge of the Gulf Stream current, as of June 19th, 2018.

36 NM South of Dry Tortugas Light, on Loggerhead Key. 18 NM South of Cosgrove Shoal Light, off the Marquesas Keys. 14 NM South of Sand Key Light, off Key West. 14 NM South of Looe Key, off Big Pine Key. 16 NM South of Sombrero Key Light, off Marathon. 15 NM Southeast of Alligator Reef Light, off Islamorada. 13 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.

Overnight
Southwest winds 5 to 10 knots. Seas 1 foot or less. Isolated showers and thunderstorms.
Thursday Through Friday Night
Southwest to west winds near 5 knots. Seas 1 foot or less. Isolated showers and thunderstorms.
Saturday
Southeast to south winds near 5 knots becoming east late in the afternoon. Seas 1 foot or less. Isolated showers and thunderstorms.
Saturday Night Through Monday Night
East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Scattered showers and isolated thunderstorms.
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Last Update: 1031 PM EDT Wed Jun 20 2018
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