Flash Flood in Garfield County, Utah

Flash Flood September 21, 2022 · Garfield County, Utah

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

What the National Weather Service wrote

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.

The wider storm

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.

Began near Escalante (37.7801, -111.6251).

Source: NOAA Storm Events Database, event 1056213. Narratives are written by the National Weather Service forecast office that issued the report.

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