Flash Flood — San Juan, New Mexico

2024-08-25 · near Shiprock, San Juan, New Mexico

$100K

Property damage

Event narrative

Heavy runoff within the Salt Creek Wash overtopped a bridge along Farm Road or B.I.A. 364 and nearby homes. Vegetation overgrowth exacerbated these flood waters. Yellow Arroyo also flooded out over property, homes and nearby roadways from the same round of thunderstorms. Damage cost is an estimate.

Wider weather episode

A plume of monsoon moisture streamed northward over western and central NM, coupled with strong wind shear in the atmosphere. Strong to severe thunderstorms developed along and west of the Continental Divide in New Mexico on August 25th, tracking north to northeast. One storm developed south of Shiprock, NM and moved northward through town. Locally heavy rainfall combined with overgrowth of vegetation in drainage canals resulted in flash flooding in multiple locations of town. One location was closer to the center of town across U.S. Highway 64, with a second thunderstorm bringing more flooding to an area just a few miles northwest of Shiprock.

View location on OpenStreetMap → (36.8256, -108.7243)

Source: NOAA Storm Events Database, event_id 1199837. Narrative written by the NWS forecast office that issued the report.