Alert USA
weather NWS minor Marion, MO; Monroe, MO; Ralls, MO; Shelby, MO October 30, 2026 at 9:35 AM

Flood Advisory

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...Southern Marion County in northeastern Missouri... Northern Monroe County in northeastern Missouri... Northwestern Ralls County in northeastern Missouri... Southern Shelby County in northeastern Missouri...

* WHEN...Until 630 AM CDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos.

* ADDITIONAL DETAILS... - At 435 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 2 and 3 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Hannibal, Palmyra, Monroe City, Shelbina, Warren, Clarence, Rensselaer, Granville, Spaulding, Maud, Woodlawn, Hunnewell, Stoutsville, Indian Creek, Duncans Bridge and Ilasco.

Flooding in Marion, MO; Monroe, MO; Ralls, MO; Shelby, MO can cut off roads with little warning, damage homes near low-lying areas, and disrupt power and water service. Even a few inches of moving water can carry away a vehicle.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Alert USA anticipates a high chance of travel disruptions, elevated property risk in low-lying areas, and possible power outages while the event is active.

Recommended steps: avoid flooded roads — turn around, don't drown; move to higher ground if you are in a low-lying area; charge phones and prepare for power loss; check on family and neighbors.

Alert USA is tracking this flood event and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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