Heavy Rain In The Plains; Poor Air Quality Out West

A slow moving weather system in the central U.S. will bring locally heavy rain to much of the Plains this weekend. Isolated flash flooding is possible in this area. Meanwhile, smoke from ongoing wildfires will continue to cause poor air quality across much of the interior West, although fire weather conditions are generally improving in this region.
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Last Update: 343 AM CDT Sat Aug 18 2018

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Brownsville, TX Local Forecast Office

46NM ENE Port Isabel TX

Marine Zone Forecast


Synopsis: Increasingly adverse marine conditions are expected along the Lower Texas Coast as high pressure over the Gulf of Mexico begins to interact more intensely with thermal low pressure inland over Mexico. Slightly building moderate seas are expected, with winds reaching into Small Craft Exercise Caution or Small Craft Advisory criteria, tonight through Sunday night. Improved marine conditions are anticipated afterwards.

Today
South winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 4 feet.
Tonight
Southeast winds 10 to 15 knots becoming south 15 to 20 knots after midnight. Seas 3 to 5 feet.
Sunday
South winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet.
Sunday Night
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Monday
Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Monday Night
Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Tuesday
Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Slight chance of showers and thunderstorms.
Tuesday Night
Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Slight chance of showers.
Wednesday
Southeast winds around 5 knots increasing to 5 to 10 knots in the afternoon. Seas 1 to 3 feet. Slight chance of showers and thunderstorms.
Wednesday Night
Southeast winds 5 to 10 knots shifting south after midnight. Seas 1 to 3 feet.
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ABOUT THIS FORECAST

Last Update: 343 AM CDT Sat Aug 18 2018
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