A flash flood watch for Austin County and surrounding areas has been issued by the National Weather Service for today.
The watch covers Austin, Brazos, Burleson, Grimes, Waller, and Washington counties and includes the cities of Bellville, Brenham, Brookshire, Bryan, Caldwell, College Station, Hempstead, Navasota, Prairie View, Sealy, Somerville, and Waller.
The remnants of Tropical Depression Imelda should continue to drift slowly north today as extremely warm and moist air flows into Southeast Texas today. This moisture will feed the development of slow moving and training thunderstorms with rainfall rates of 3 to 5 inches per hour. A persistent swath of storms across eastern Montgomery, Liberty and Chambers counties
should wobble north then south early this morning.
Storms should continue to expand and develop further to the west as far out as the College Station and Industry areas by mid to late morning. Eventually a band of rainfall should develop and amounts across the band of 3-5 inches should be common with isolated amounts near 10 inches while outside of the band heavy rainfall may be more scattered in nature with amounts of only 1 to 2 inches.
The heavy rains will not only cause street flooding but with the elevated river and bayou levels more river flooding is likely to occur. The flash flood watch may need to be extended this
evening. The flood threat may begin to shift further north tonight toward the Madisonville and Huntsville and Crockett areas.
A flash flood watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Be especially cautious at night when it is harder to recognize the dangers of floods and flash floods. If flash flooding is observed, act quickly. Move up to escape flood waters. Do not stay in areas subject to flooding when water begins rising.