Flash Flood — Garfield, Utah

2022-09-21 · near Escalante, Garfield, Utah

Event narrative

A thunderstorm moved through portions of the Escalante River drainage basin, producing moderate rainfall, with widespread 3-hour Multi-Radar/Multi-Sensor rainfall estimates of 0.50 to 1.00 inches in upstream tributary areas. This generated a flood wave that propagated downstream, resulting in the Escalante near Escalante river gauge spiking to 804 CFS at 9:50 pm MST.

Wider weather episode

A deep upper level low coming ashore along the U.S. West Coast resulted in a combination of strong forcing, instability, and available moisture over the Salt Lake City forecast area. This event prompted an uncommon issuance of a Severe Thunderstorm Watch (number 541 of the year). Scattered strong wind gusts occurred, as did multiple instances of Flash Flooding.

View location on OpenStreetMap → (37.7801, -111.6251)

Source: NOAA Storm Events Database, event_id 1056213. Narrative written by the NWS forecast office that issued the report.