Threat For Heavy Rainfall And Flooding Over The Texas Gulf Coast And Midwest; Excessive Heat Across The Desert Southwest

A slow moving disturbance will bring the continued threat for heavy rainfall and flooding along the Texas Gulf Coast through Wednesday. Flash Flood Watches remain in effect. Additional heavy rainfall will be possible from the Midwest to the Ohio Valley along a stalled frontal boundary. Very hot temperatures exceeding 110 degrees are likely over southern California, Nevada, and Arizona.
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Hazardous Weather Conditions

Last Update: 1027 PM EDT Tue Jun 19 2018

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Key West, FL Local Forecast Office

45NM SSW Rebecca Shoal Light FL

Marine Zone Forecast


Synopsis: An Atlantic ridge of high pressure will extend across Central Florida overnight and Wednesday. This ridge of high pressure will shift southward Wednesday night. An Atlantic ridge of high pressure will extend across South Florida Thursday through Saturday, before slowly lifting northward Saturday night through Sunday night.

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
Variable winds 5 to 10 knots. Seas 1 to 2 feet. isolated showers and thunderstorms.
Wednesday
Variable winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms.
Wednesday Night
Variable winds 5 to 10 knots. Seas around 2 feet. Isolated showers and thunderstorms.
Thursday
Southwest winds near 10 knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
Thursday Night
Variable winds 5 to 10 knots. Seas around 2 feet. Isolated showers and thunderstorms.
Friday
Southwest winds near 10 knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
Friday Night
Southwest winds near 10 knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
Saturday
Variable winds 5 to 10 knots, becoming east to southeast and increasing to near 10 knots in the afternoon. Seas 2 to 3 feet. Isolated showers and thunderstorms.
Saturday Night Through Sunday Night
East to southeast winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and isolated thunderstorms.
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ABOUT THIS FORECAST

Last Update: 1027 PM EDT Tue Jun 19 2018
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