Severe · Flash Flood WarningThis alert has expired. It is kept for reference.
Flash Flood Warning issued September 19 at 3:23PM MDT until September 19
Affecting Sierra, NM
In effect until: Sep 19, 2026, 11:00 PM
Sierra, NM
Likely impact in Sierra, NM; effects through 11:00 PM.
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall.
Read the original bulletin (official text)
At 323 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 1.8 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Alamosa Canyon.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™