Flash Flood Warning Issued for Southeastern Missouri Counties Through Saturday Morning

Source: NOAA · Southeastern Missouri

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The National Weather Service has issued a Flash Flood Warning for parts of Crawford, Washington, Iron, and Reynolds counties until 9:00 AM CST following heavy rainfall.

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

This notice was issued by NOAA on March 13, 2026 and geographically references Southeastern 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.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Flash Flood Warning, Missouri) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

The National Weather Service in St. Louis has issued a Flash Flood Warning for portions of east central and southeastern Missouri. The alert was issued at 4:08 AM CST on March 7, 2026, after Doppler radar indicated thunderstorms producing heavy rain across the region. The warning is classified as a severe threat with immediate urgency.

Affected Areas

The warning covers the following geographic regions in Missouri:

  • Southeastern Crawford County (East Central MO)
  • Southern Washington County (East Central MO)
  • Northern Iron County (Southeastern MO)
  • North Central Reynolds County (Southeastern MO)

Specific locations expected to experience flash flooding include Potosi, Pilot Knob, Viburnum, Irondale, Courtois, Bixby, Belleview, Caledonia, Belgrade, Davisville, Dillard, and Granite. The warning also encompasses Elephant Rocks State Park and the Dillard Mill Historic Site.

What You Should Do

Residents and travelers in the warned area are advised to "Turn around, don't drown" when encountering flooded roads. Most flood-related deaths occur in vehicles. Officials urge extra caution at night when the dangers of flooding are significantly harder to recognize. The NWS recommends avoiding small creeks, streams, and low-lying areas where drainage is poor.

Expected Conditions

According to radar indicators, between 2 and 3 inches of rain have already fallen in the affected area. Additional rainfall amounts of 1 to 2 inches are possible. Flash flooding is currently ongoing or expected to begin shortly. Hazards include the flooding of small creeks and streams, urban areas, highways, streets, underpasses, and other low-lying zones.

Timeline

The Flash Flood Warning is effective immediately as of 4:08 AM CST and is scheduled to remain in effect until 9:00 AM CST on Saturday, March 7, 2026.

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 Flash Flood Warning for parts of Crawford, Washington, Iron, and Reynolds counties until 9:00 AM CST following heavy rainfall.
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 Southeastern 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.