Texas Severe Flood Warning | Effective 07/20/2026 06:34

Headline: 
Flood Warning issued July 20 at 8:34AM CDT until July 22 at 4:00PM CDT by NWS Austin/San Antonio TX
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
July 20, 2026 - 6:34am
Expires: 
July 21, 2026 - 12:45am
Description: 
...The Flood Warning continues for the following rivers in Texas... Frio River Near Derby affecting Frio County. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Frio River near Derby. * WHEN...Until Wednesday afternoon. * IMPACTS...At 10.0 feet, Lowland flooding below Concan to Choke Canyon Reservoir floods oil well pump jacks, irrigation pumps and any equipment in the lower flood plain near and above Derby. * ADDITIONAL DETAILS... - At 7:30 AM CDT Monday the stage was 12.0 feet. - Bankfull stage is 6.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 AM CDT Monday was 14.3 feet. - Forecast...The river is expected to fall below flood stage early Wednesday morning and continue falling to 3.7 feet Saturday morning. - Flood stage is 6.0 feet. - Flood History...This crest compares to a previous crest of 11.7 feet on 12/23/1991. - http://www.weather.gov/safety/flood
Instruction: 
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Flooding is occurring or is imminent. Most flood related deaths occur in automobiles. Do not attempt to cross water covered bridges, dips, or low water crossings. Never try to cross a flowing stream, even a small one, on foot. To escape rising water find another route over higher ground. Additional information is available at www.weather.gov. The next statement will be issued late tonight by 245 AM CDT.
Area Description: 
Frio, TX
Forcast Office: 
NWS Austin/San Antonio TX