Flood Warning Issued for Johnson and Pettis Counties, Missouri

Source: NOAA · Johnson and Pettis Counties, Missouri

This alert is no longer in effect.

NOAA issued it on July 10, 2026, 6 weeks 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 has issued a Flood Warning for the Blackwater River at Valley City affecting Johnson and Pettis Counties from Sunday morning to Monday evening.

Read this weather record in 30 seconds

Record type
Flood Warning
Affected area
Johnson and Pettis Counties, Missouri
Issued
July 10, 2026
Issuing authority
NWS Kansas City/Pleasant Hill MO

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 6 weeks ago; use the issuing agency's live warning service for current conditions in Johnson and Pettis Counties, Missouri.

Alert Details

A Flood Warning has been issued by the National Weather Service in Kansas City/Pleasant Hill MO. The alert is effective from June 13 at 11:09AM CDT, with onset on June 14 at 7:43AM CDT and ending June 15 at 11:00PM CDT.

Affected Areas

The warning covers Johnson County, MO and Pettis County, MO, specifically the Blackwater River at Valley City.

What You Should Do

Turn around, don't drown when encountering flooded roads. Motorists should not attempt to drive around barricades or drive cars through flooded areas.

Expected Conditions

Minor flooding is forecast. The river is expected to rise above flood stage of 22.0 feet to a crest of 24.9 feet early tomorrow afternoon before falling below flood stage late tomorrow evening. At 22.0 feet, woodlands and farm fields along the river begin to flood. At 25.0 feet, County Highway E near Valley City and Highway 23 near the Perry State Wildlife Area are under water.

Timeline

The alert is in effect from Sunday morning through Monday evening, with the river cresting early tomorrow afternoon.

Original source: NOAA Official Notice ↗

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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 has issued a Flood Warning for the Blackwater River at Valley City affecting Johnson and Pettis Counties from Sunday morning to Monday evening.
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 Johnson and Pettis Counties, 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.