Western Heat and Monsoon Continues; Increasing Moisture in the East

High pressure continues to produce excessive heat and critical fire weather conditions for portions of the west, with heavy rains and potential for flash flooding associated with the monsoons in the southwest. Meanwhile, a cold front approaching the east coast is increasing the humidity and heat index, and bringing potential for heavy rain and flash flooding.
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Hazardous Weather Conditions

Last Update: 1017 PM EDT Sun Jul 15 2018

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Key West, FL Local Forecast Office

12NM SSW Tennessee Reef Light FL

Marine Zone Forecast


Synopsis: A weak pressure pattern over the Florida Keys coastal waters will result in light southeast breezes overnight. Weak high pressure will build into the area Monday and Tuesday bringing light to gentle southeast breezes.

The Approximate Shoreward Edge of the Gulf Stream current, as of July 14th, 2018.

49 NM South of Dry Tortugas Light, on Loggerhead Key. 29 NM South of Cosgrove Shoal Light, off the Marquesas Keys. 23 NM South of Sand Key Light, off Key West. 15 NM South of Looe Key, off Big Pine Key. 15 NM South of Sombrero Key Light, off Marathon. 15 NM Southeast of Alligator Reef Light, off Islamorada. 12 NM Southeast of Molasses Reef Light, off Key Largo. 9 NM East of Carysfort Reef Light, off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

Overnight
East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms.
Monday
East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Scattered showers and thunderstorms.
Monday Night
East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms.
Tuesday
East to southeast winds 5 to 10 knots. Seas 1 to 3 feet. Scattered showers and thunderstorms.
Tuesday Night And Wednesday
East to southeast winds 5 to 10 knots. Seas 1 to 3 feet. Isolated showers and thunderstorms.
Wednesday Night
East to southeast winds near 5 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms.
Thursday
Southeast to south winds near 5 knots becoming north. Seas 1 to 2 feet. Isolated showers and thunderstorms.
Thursday Night
North to northeast winds near 5 knots becoming east to southeast. Seas 1 to 2 feet. Isolated showers and thunderstorms.
Friday And Friday Night
East to southeast winds 5 to 10 knots. Seas 1 to 3 feet. Isolated showers and thunderstorms.
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ABOUT THIS FORECAST

Last Update: 1017 PM EDT Sun Jul 15 2018
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