Flood Warning Issued for Cottonwood River Near Emporia in Lyon County

Source: NOAA · Lyon County, Kansas

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A Flood Warning is in effect for the Cottonwood River near Emporia as minor flooding occurs, with the river expected to crest at 20.4 feet this morning.

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

This notice was issued by NOAA on February 15, 2026 and geographically references Lyon County, Kansas. 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, Flood Warning, Lyon County) 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 Topeka has issued a Flood Warning for the Cottonwood River near Emporia. The alert was issued at 5:44 AM CST on February 15 and remains in effect until 4:48 AM CST on February 16.

Affected Areas

The warning specifically impacts Lyon County in Kansas, focusing on the areas surrounding the Cottonwood River near Emporia.

What You Should Do

Residents and travelers are advised to exercise extreme caution. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional weather and stream information is available through the NWS Topeka office.

Expected Conditions

Minor flooding is currently occurring and is forecast to continue through the morning.

  • Current Stage: As of 5:30 AM CST on Sunday, the river stage was recorded at 20.1 feet.
  • Flood Stage: 20.0 feet.
  • Forecast: The river is expected to rise to a crest of 20.4 feet this morning. It is then projected to fall below flood stage late this morning.
  • Impacts: At 20.0 feet, the south bank of the Cottonwood River floods approximately one mile south of Emporia.

Timeline

The Flood Warning is effective from 5:44 AM CST on Sunday, February 15. While the river is expected to fall below flood stage later today, the warning remains officially in place until 4:48 AM CST on Monday, February 16.

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?
A Flood Warning is in effect for the Cottonwood River near Emporia as minor flooding occurs, with the river expected to crest at 20.4 feet this morning.
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 Lyon County, Kansas. 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.