Flood Warning Issued for Monroe County, Missouri
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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 April 27, 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 warning protocol behind it, which shapes what protective action (seeking shelter, following evacuation orders if issued, monitoring official updates) is recommended and which agency holds authority to issue or cancel it.
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.