Flood Warning Issued for Monroe County, Missouri

Source: NOAA · Monroe, Missouri

The National Weather Service has issued a Flood Warning for Monroe County, Missouri, due to expected minor flooding on the Mid Fork Salt River near Holliday from this evening until late Thursday night.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on May 7, 2026 and geographically references Monroe, Missouri. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Weather Alerts — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

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Flood Warning in Monroe, MO

Alert Details

The alert is a Flood Warning issued by the National Weather Service (NWS) St Louis MO. It is effective from April 27, 2026, at 2:42 PM CDT until May 1, 2026, at 4:00 AM CDT.

Affected Areas

The warning affects Monroe, MO, specifically the Mid Fork Salt River near Holliday.

What You Should Do

Turn around and do not drive through flooded roads, as most flood deaths occur in vehicles. Monitor conditions for possible heavier rainfall, and the National Weather Service will issue follow-up statements as needed.

Expected Conditions

Minor flooding is forecast, with the river stage expected to rise above the flood stage of 17.0 feet to a crest of 20.1 feet. At 2:00 PM CDT on April 27, 2026, the stage was 15.6 feet.

Timeline

The onset is at 7:00 PM CDT on April 27, 2026. The river is expected to crest early Wednesday morning and fall below flood stage early Thursday morning, with the alert expiring on April 29, 2026, at 2:45 AM CDT and ending on May 1, 2026, at 4:00 AM CDT.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
The National Weather Service has issued a Flood Warning for Monroe County, Missouri, due to expected minor flooding on the Mid Fork Salt River near Holliday from this evening until late Thursday night.
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 Monroe, 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.