UPDATE — Friday, October 23, 7:13 PM MDT: The National Weather Service has extended this flash flood warning for eastern Grant and southwestern Sierra counties to 9:15 PM MDT. Between one and one and a half inches of rain have already fallen and flooding impacts will continue, though no additional rainfall is expected. Flash flooding remains ongoing in the warned area, including around Lake Valley.

Deming, NM — The National Weather Service in El Paso/Santa Teresa has issued a Flash Flood Warning for southwestern Sierra County and eastern Grant County in southwestern New Mexico, in effect through 7:45 PM MDT.

What is happening: At 4:44 PM MDT, Doppler radar showed thunderstorms dropping heavy rain across the warned area. Between one and one and a half inches of rain has already fallen, and up to another half inch is possible. Flash flooding is happening now or will begin shortly.

Local impacts: Flooding of small creeks and streams, urban streets, highways, and underpasses. In hilly terrain, low-water crossings can turn dangerous fast in heavy rain.

What to do:

- Turn around, don't drown. Never drive on a flooded road.

- Most flood deaths happen in vehicles — six inches of moving water can knock you down, twelve can sweep a car away.

- If you see water rising around you, get to higher ground immediately.

Source: National Weather Service, October 23, 2026.