Flash Flood in Rio Arriba County, New Mexico

Flash Flood August 29, 2025 · Rio Arriba County, New Mexico

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Heavy rainfall from a slow moving thunderstorm resulted in rushing floodwaters across State Highway 76 near Mile Marker 8 in Chimayo.

The wider storm

Monsoon Moisture across central and eastern New Mexico along with a backdoor front entering northeast NM resulted in the development of scattered shower and thunderstorm activity across these portions of the state. A slow moving thunderstorm resulted in flash flooding on State Highway 76 near Chimayo. Severe thunderstorms resulted in damaging wind gusts of up to 70 mph across Union and Harding County. Finally, mid to late evening thunderstorms resulted in some flash flooding at Bear Canyon near Ruidoso and in Portales.

Began near El Llano (36.0009, -105.9925).

Source: NOAA Storm Events Database, event 1279813. Narratives are written by the National Weather Service forecast office that issued the report.

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