Texas Flash Flood Warning Severe | Effective 05-20-2026 21:12

Headline: 
Flash Flood Warning issued May 20 at 11:12PM CDT until May 21 at 2:15AM CDT by NWS San Angelo TX
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
May 20, 2026 - 9:12pm
Expires: 
May 21, 2026 - 12:15am
Description: 
FFWSJT The National Weather Service in San Angelo has issued a * Flash Flood Warning for... Kimble County in west central Texas... Southwestern Mason County in west central Texas... * Until 215 AM CDT. * At 1112 PM CDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen very quickly. Flash flooding is ongoing or expected to begin shortly. 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... Junction, Segovia, Yates Crossing, London, South Llano River State Park, and Telegraph. This includes Interstate 10 between Mile Markers 449 and 477. This includes the following Low Water Crossings... Park Road 73 crossing South Llano River, US HWY 377 crossing South Llano River, RM 385 crossing Perdenales River, RM 385 crossing Falls Prong, US HWY 377 crossing 2 miles North of Telegraph, FM 2169 crossing Johnson Fork Creek, CR 150 crossing South Llano River, Mill Creek crossing Mill Creek, FM 2169 crossing Johnson Fork Creek and FM 2169 crossing Johnson Fork Creek.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. 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.
SNM: AVISO DE INUNDACIONES REPENTINAS hasta 2:15 AM CDT. Evite areas inundadas.
Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 2:15 AM CDT. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.
Area Description: 
Kimble, TX; Mason, TX
Forcast Office: 
NWS San Angelo TX