⚠️ Flood Watch – Adams; Brown; Pike; Calhoun; Knox; Lewis; Shelby; Marion; Monroe; Ralls; Pike; Boone; Audrain; Moniteau; Cole; Osage; Callaway; Montgomery; Lincoln; Gasconade; Warren – Saturday, June 20, 2026

Flood Watch issued June 20 at 1:28AM CDT until June 21 at 7:00PM CDT by NWS St Louis MO

Details

* WHAT…Flash flooding caused by excessive rainfall is possible.

* WHERE…Portions of Illinois, including the following areas, Adams
IL, Brown IL, Calhoun IL and Pike IL and Missouri, including the
following areas, Audrain MO, Boone MO, Callaway MO, Cole MO,
Gasconade MO, Knox MO, Lewis MO, Lincoln MO, Marion MO, Moniteau
MO, Monroe MO, Montgomery MO, Osage MO, Pike MO, Ralls MO, Shelby
MO and Warren MO.

* WHEN…From late tonight through Sunday evening.

* IMPACTS…Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS…
– Thunderstorms producing heavy rainfall moving over the same
locations could produce flash flooding. Rainfall amounts of 1-3
inches are expected with locally higher amounts possible.

Instructions

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.