Headline:
Flash Flood Warning issued April 21 at 11:43AM CDT until April 21 at 3:15PM CDT by NWS Austin/San Antonio TX
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
April 21, 2026 - 9:43am
Expires:
April 21, 2026 - 1:15pm
Description:
FFWEWX
The National Weather Service in Austin/San Antonio has extended the
* Flash Flood Warning for...
Central Williamson County in south central Texas...
* Until 315 PM CDT.
* At 1143 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 5 inches of rain have fallen. Additional rainfall amounts up
to 1 inch are possible in the warned area. Flash flooding is
already occurring.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar and automated gauges.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Round Rock, Georgetown, Taylor, Serenada, Leander, Hutto, Liberty
Hill, Jarrell, Florence, Thrall, Weir, Georgetown Dam, Sun City,
Andice, Coupland, Jonah, Walburg, Theon, Waterloo and Seward
Junction.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
Area Description:
Williamson, TX
Forcast Office:
NWS Austin/San Antonio TX
Sender:
w-nws.webmaster@noaa.gov