According to the National Weather Service in Brownsville/Rio Grande Valley, a weak upper-level system over South Texas is expected to bring scattered to numerous showers and thunderstorms this afternoon. This weather pattern could lead to nuisance flooding, and isolated flash flooding may occur, especially if there are heavier rainfall amounts.

In light of the heavy rain and potential flooding, the Office of Emergency Management and Homeland Security for the City of Brownsville is urging residents to avoid driving through flooded roads. They emphasize that flooding can happen gradually or rapidly, and when a flood warning is in effect, it is important to seek shelter immediately.

Residents and motorists should not walk, swim or driver through flood waters.
 “It only takes 6 inches of moving water to knock you down and one foot of moving water to sweep your vehicle away,” the OEM reports.

The Weather Prediction Center (WPC) has issued a Marginal Risk (level 1 of 4) of excessive rainfall for much of Deep South Texas, including the Brownsville area. The heaviest rainfall is anticipated to occur from this morning through the afternoon, and possibly into early evening in some areas. The expected rainfall amounts range from widespread general amounts of 0.5-1 inch to isolated amounts of 3 to 4 inches in locations experiencing heavier rain.