Tornado Watch for parts of Southeast Texas until 9 p.m.

HOUSTON, Texas (KTRK) -- A Tornado Watch is in effect until 9 p.m. for parts of Southeast Texas. It includes Austin, Colorado, Grimes, Montgomery, San Jacinto, Walker, Waller, and Washington counties. It does not include Houston.

A Flash Flood Watch is also in effect for all of Southeast Texas until 7 a.m. Thursday. We are growing concerned about the potential for flash flooding overnight.

Drivers should use caution on the roads as roadways will have the potential for flooding over the next couple of days.

Stay weather aware by downloading the ABC13 app to have the latest breaking news and weather alerts sent straight to your phone.

EMBED More News Videos

You'll want to stay weather and traffic aware over the next few days as flash flooding chances rise into Wednesday.

When will the heaviest rain fall?
The greatest concern for flooding from heavy rain will happen overnight through all of Wednesday and into Thursday morning. Street and creek flooding will be likely then. And we'll really need to watch the bayous during that time since the heavy rain could fall for several hours. River flooding is also likely due to the widespread rains coming to the eastern half of Texas over the next several days.

When will rain chances come to an end?
Moisture will still be sticking around keeping rain chances in the forecast into the weekend. We should finally get a break on Sunday.

Southeast Texas
Harris County
Galveston County

Montgomery/Walker/San Jacinto/Polk/Grimes Counties
Fort Bend/Wharton/Colorado Counties
Brazoria/Matagorda Counties
SHARE YOUR WEATHER PHOTOS: Send us pics and videos of weather in your area to and at #ABC13Eyewitness on social media.
Copyright © 2021 KTRK-TV. All Rights Reserved.