Flood Warning Issued for Linn and Livingston Counties, MO
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A Flood Warning is in effect for the Grand River near Chillicothe until late Friday night, with major flooding forecast.
What this NWS weather alert tells you, and what most readers miss
This notice was issued by NOAA on June 23, 2026 and geographically references Linn and Livingston Counties, 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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Alert Details
A Flood Warning has been issued by the National Weather Service Kansas City/Pleasant Hill MO. The alert is effective from May 18 at 10:35AM CDT and remains in effect until May 23 at 1:12AM CDT.
Affected Areas
The warning covers Linn County, MO and Livingston County, MO, specifically the Grand River near Chillicothe.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Moderate flooding is occurring and major flooding is forecast. At 9:45 AM CDT the stage was 32.0 feet. The river is expected to rise to a crest of 35.7 feet early Wednesday morning. At 28.0 feet, rural roads are under water. At 35.0 feet, U.S. Highway 65 south of Chillicothe is threatened by flood water. Flood stage is 24.0 feet.
Timeline
The alert is in effect until late Friday night. The river is forecast to fall below flood stage early Friday morning.
Original source: NOAA Official Notice ↗
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