Severe Thunderstorms Possible for the Great Lakes into Ohio Valley; Heavy to Excessive Rainfall Over the Southern Plains

Severe thunderstorms will race along a cold front from the Upper Mississippi Valley into the Great Lakes and Ohio Valley with the main threat being damaging winds. The tail end of this front will possibly produce heavy to excessive rainfall across the southern Plains into the Lower Mississippi Valley through Saturday. Finally, Major-to-record river flooding continues across the Carolinas.
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Last Update: 953 PM CDT Thu Sep 20 2018

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Houston, TX Local Forecast Office

50NM SSE Matagorda TX

Marine Zone Forecast


Synopsis: Light to moderate onshore flow will prevail for the next couple days. Winds should diminish this weekend as the pressure gradient relaxes. Deepening tropical moisture and a series of upper level disturbances will bring increased chances of showers and thunderstorms to the waters Friday into early next week.

Rest Of Tonight
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers.
Friday
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms.
Friday Night
Southeast winds 10 to 15 knots. Seas 3 feet. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Some thunderstorms may produce heavy rainfall after midnight.
Saturday
South winds 10 to 15 knots becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Thunderstorms in the morning. Showers. Thunderstorms likely in the afternoon. Some thunderstorms may produce heavy rainfall in the morning.
Saturday Night
Southeast winds around 10 knots becoming south after midnight. Seas 2 to 3 feet. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight.
Sunday
Southeast winds 5 to 10 knots. Seas 2 feet. A chance of showers and thunderstorms.
Sunday Night
Southeast winds 5 to 10 knots becoming south after midnight. Seas 2 feet. Showers and thunderstorms likely. Some thunderstorms may produce heavy rainfall.
Monday
South winds 5 to 10 knots becoming southeast in the afternoon. Seas 1 to 2 feet. A chance of showers and thunderstorms.
Monday Night
South winds 10 to 15 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms.
Tuesday
South winds around 10 knots. Seas 2 feet. A chance of showers and thunderstorms.
Tuesday Night
South winds 10 to 15 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms.
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ABOUT THIS FORECAST

Last Update: 953 PM CDT Thu Sep 20 2018
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