Flash Flood Warning Issued for Central Lyon County, Kansas

Source: NOAA · Lyon County, Kansas

This alert is no longer in effect.

NOAA issued it on June 17, 2026, 2 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

NWS Topeka has issued a Flash Flood Warning for central Lyon County until 2:30 AM CDT due to heavy rainfall from thunderstorms.

Read this weather record in 30 seconds

Record type
Flash Flood Warning
Affected area
Lyon County, Kansas
Issued
June 17, 2026
Issuing authority
NWS Topeka KS

Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.

Record status: historical. It was issued 2 months ago; use the issuing agency's live warning service for current conditions in Lyon County, Kansas.

Alert Details

Flash Flood Warning issued by NWS Topeka KS. Effective from June 1 at 12:18 AM CDT until June 1 at 2:30 AM CDT. Severity: Severe. Urgency: Immediate. Certainty: Likely.

Affected Areas

Central Lyon County in east central Kansas, including Emporia, Americus, Hartford and Neosho Rapids. Kansas Turnpike between mile markers 121 and 132. Interstate 35 between mile markers 128 and 139.

What You Should Do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.

Expected Conditions

Doppler radar indicated thunderstorms producing heavy rain. Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible. Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Timeline

Alert effective June 1 at 12:18 AM CDT. Expires and ends June 1 at 2:30 AM CDT.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Topeka has issued a Flash Flood Warning for central Lyon County until 2:30 AM CDT due to heavy rainfall from thunderstorms.
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.