Flash Flood — Washington, Utah

2023-09-13 · near Rockville, Washington, Utah

$20K

Property damage

Event narrative

Flash flooding was reported on Short Creek and its tributaries through the Hilldale and Colorado City area. All creek road crossings were closed for 2 to 3 hours, and the Hilldale Street Creek crossing was heavily damaged and subsequently closed indefinitely until repairs could be made. This flooding is the result of strong thunderstorms which per Multi-Radar Multi-Sensor, produced approximately 3.00 to 4.00 of rainfall, largely within the span of 2 hours, though some of this can likely be attributed to hail contamination. At 6:25 am MST on the 14th, the downstream Fort Pearce Wash gauge recorded a spike in flow to 124 CFS associated with the flood water propagation.

Wider weather episode

A brief resurgence of the active pattern resulted in scattered strong thunderstorms which resulted in reports of a landspout, hail, and flash flooding.

View location on OpenStreetMap → (37.0002, -112.9472)

Source: NOAA Storm Events Database, event_id 1131412. Narrative written by the NWS forecast office that issued the report.