Flash Flood — Boone, Missouri

2023-07-14 · near Cou Cotton Mem Arpt, Boone, Missouri

Event narrative

Up to four inches of rain fell in a short amount of time causing flash flooding. Highway WW was underwater near the intersection with El Chaparral Avenue. A water rescue was performed in this area after a vehicle drove into the flooded roadway. No injuries were reported.

Wider weather episode

Isolated storms developed in an area where dewpoints in the low to mid 70s pooled. There was some weak surface convergence, ML CAPEs over 2000 J/kg, and steep low-level lapse rates, so there were some localized damaging microbursts with the severe storms. An area of storms over northern St. Clair County in Illinois produced up to 5 inches of rain in about a two hour period with some reports of flash flooding.

View location on OpenStreetMap → (38.9701, -92.2953)

Source: NOAA Storm Events Database, event_id 1128497. Narrative written by the NWS forecast office that issued the report.