Flash Flood Warning Issued for Illinois and Missouri Counties

Source: NOAA · Southwestern Illinois and East Central Missouri

This alert is no longer in effect.

NOAA issued it on June 17, 2026, 2 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

NWS St Louis has issued a Flash Flood Warning for parts of southwestern Illinois and east central Missouri until 9:30 AM CDT.

Read this weather record in 30 seconds

Record type
Flash Flood Warning
Affected area
Southwestern Illinois and East Central Missouri
Issued
June 17, 2026
Issuing authority
NWS St Louis MO

Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.

Record status: historical. It was issued 2 months ago; use the issuing agency's live warning service for current conditions in Southwestern Illinois and East Central Missouri.

Alert Details

Flash Flood Warning issued by NWS St Louis MO. Effective from June 1 at 4:37 AM CDT until June 1 at 9:30 AM CDT.

Affected Areas

Central Calhoun County in southwestern Illinois; Southwestern Greene County in southwestern Illinois; Southwestern Jersey County in southwestern Illinois; Northeastern Lincoln County in east central Missouri; Southeastern Pike County in northeastern Missouri. Specific locations include Elsberry, Hardin, Fieldon, Batchtown, Hamburg, Paynesville, Annada and Nutwood. Includes Mississippi River State Fish and Wildlife Area and Pere Marquette State Park, along with multiple creeks and streams.

What You Should Do

Turn around, don't drown when encountering flooded roads.

Expected Conditions

Doppler radar indicated thunderstorms producing heavy rain. Between 1 and 3 inches of rain have fallen with additional rainfall amounts of 1 to 2 inches possible.

Timeline

The warning is in effect from June 1 at 4:37 AM CDT until June 1 at 9:30 AM CDT.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS St Louis has issued a Flash Flood Warning for parts of southwestern Illinois and east central Missouri until 9:30 AM CDT.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Southwestern Illinois and East Central Missouri. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.