National Weather Service United States Department of Commerce

Heavy Rain From East Texas to the Central Gulf Coast; Lower Mississippi Valley

Showers and thunderstorms, heavy at times, are expected from south Texas to the central Gulf coast and the lower Mississippi Valley through the weekend. Heavy rain will also spread into the Pacific and interior Northwest, with snow in the higher elevations of the Cascades. Snow will also impact the northern Great Lakes and northern New England at times. Read More >

Click a location below for detailed forecast.

Last Map Update: Sat, Dec. 3, 2016 at 3:33:09 am CST

National Weather Service Austin/San Antonio, TXNational Weather Service Austin/San Antonio, TXNational Weather Service Houston/Galveston, TX
National Weather Service Austin/San Antonio, TXZoom

National Weather Service Brownsville/Rio Grande Valley, TXNational Weather Service Brownsville/Rio Grande Valley, TX

Scattered to numerous showers and isolated thunderstorms can be expected tonight. A Small Craft Advisory is in effect for the gulf waters tonight. Lows from the mid to upper 60s inland to around 70 closer to the coast.
Rain chances will begin to increase later this evening and overnight, with showers likely and isolated thunderstorms also expected. Rain chances will continue Saturday (with the better chances over the Northeast Coastal Bend and the Victoria Crossroads area), as a frontal boundary tries to move north but stalls. A potent upper level disturbance will approach South Texas Saturday night and Sunday, providing likely showers and a chance for thunderstorms, some possibly producing heavy rainfall. A few strong storms will also be possible. As the upper system approaches, the surface low will move into the Gulf of Mexico and push a cold front through South Texas. Rain will continue Sunday night and Monday morning, before diminishing during the afternoon as the upper low moves east of the area and brings drier air to South Texas. Shown above in the graphic are the average rainfall amounts and the main concerns this weekend.
Copious moisture will combine with upper level disturbances and a frontal boundary to generate scattered to numerous showers and isolated thunderstorms Saturday and Sunday. The front will move across the region by late Sunday. Precipitation will end from west to east Monday as the upper system moves east. No precipitation Tuesday. A strong cold front is expected to move across South Texas by late Wednesday. Isolated showers may occur over the Coastal Bend and adjacent Coastal Waters along the front. Colder conditions are expected after frontal passage.

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