Heavy Rainfall And Flooding Threat Gradually Shifts From The Western Gulf Coast To The Mid Mississippi and Ohio Valleys and Mid-Atlantic Region; Excessive Heat Consumes Desert Southwest.

A low pressure system will advance slowly south and west from south TX into Mexico, which will gradually curtail the torrential rainfall and flooding in south/southeast TX. Focus for heavy flooding rain will shift to the Mid MS/Ohio Valleys and Mid-Atlantic, as an area of low pressure tracks very slowly along a moist stationary front. Finally, Heat will be the word in parts of CA and Southwest.
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Hazardous Weather Conditions

Last Update: 415 PM EDT Thu Jun 21 2018

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Miami - South Florida Local Forecast Office

12NM WSW Naples FL

Marine Zone Forecast


Synopsis: A weakening ridge of high pressure will allow for above average moisture over the region through the weekend and into early next week. Winds over the Atlantic waters of 10 to 15 knots through this evening will diminish to about 10 kts for Friday and become SW to W through Saturday. Outside of thunderstorms, winds generally 5 to 10 knots and seas around 2 feet or less will prevail through the weekend. Higher winds and seas can be expected in and around thunderstorms.

.GULF STREAM HAZARDS...None.

The approximate location of the west wall of the Gulf Stream as of Jun 21, 2018 at 1200 UTC...

3 nautical miles northeast of Fowey Rocks. 7 nautical miles east northeast of Port Everglades. 7 nautical miles east southeast of Lake Worth. 10 nautical miles southeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Tonight
Winds west winds 5 to 10 knots. Seas less than 2 feet. Period 3 seconds. Bay and inland waters a light chop.
Friday
West southwest winds 5 to 10 knots. Seas less than 2 feet. Period 3 seconds. Bay and inland waters a light chop. A slight chance of showers and thunderstorms in the morning.
Friday Night
West southwest winds 5 to 10 knots. Seas less than 2 feet. Period 3 seconds. Bay and inland waters a light chop.
Saturday
West southwest winds 5 to 10 knots. Seas less than 2 feet. Period 4 seconds. Bay and inland waters a light chop. A slight chance of showers and thunderstorms in the morning... Then a chance of showers and thunderstorms in the afternoon.
Saturday Night
Nearshore, west southwest winds 5 knots becoming south southeast late in the evening...then becoming variable winds less than 5 knots in the morning. Offshore, northwest winds 5 to 10 knots becoming east northeast late in the evening...then becoming east southeast 5 knots after midnight. Seas less than 2 feet. Bay and inland waters a light chop. A chance of showers and thunderstorms.
Sunday
East southeast winds 5 knots. Seas less than 2 feet. Bay and inland waters smooth. Showers and thunderstorms likely.
Sunday Night
East winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop. A chance of showers and thunderstorms.
Monday
East southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop. Showers and thunderstorms likely.
Monday Night
East southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop. A chance of showers and thunderstorms.
Tuesday
South southwest winds 5 knots becoming west southwest around 5 knots in the evening. Seas less than 2 feet. Bay and inland waters smooth. A chance of showers and thunderstorms.
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ABOUT THIS FORECAST

Last Update: 415 PM EDT Thu Jun 21 2018
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