Alert archive / Kansas / River Flood Warnings in 2026

River Flood Warning 20, NWS Wichita, KS

June 19, 2026Cowley County, Sumner County, Kansas

NWS Wichita, KS issued this river flood warning at Jun 19, 2026, 1:50 AM CDT for Cowley County, Sumner County, Kansas. It took effect at Jun 19, 2026, 5:11 AM CDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jun 19, 2026, 1:50 AM CDT (06:50 UTC)
In effect from: Jun 19, 2026, 5:11 AM CDT
Expired: Jun 19, 2026, 7:57 AM CDT
In force: 3 hr
Issued by: NWS Wichita, KS
Area: Storm-based polygon
Flood severity: Minor

Counties Cowley County, KS, Sumner County, KS

The radar

The Wichita radar (KICT), 53 km from the middle of the area, began a volume at 06:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Slate Creek (KS) at Wellington (WELK1). The gauge peaked at 18.58 ft at Jun 19, 2026, 8:00 PM CDT.

Action stage: 17 ft
Minor stage: 19 ft
Moderate stage: 22 ft
Major stage: 23.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07145700, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wichita, KS wrote its last area forecast discussion before this river flood warning went out at Jun 19, 12:05 AM CDT, 1 hour 45 minutes earlier.

Area forecast discussion, Jun 19, 12:05 AM CDT, 1 hour 45 minutes before

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Hazardous weather outlook, Jun 18, 6:08 PM CDT, 7 hours 42 minutes before

Hazardous Weather Outlook
National Weather Service Wichita KS
608 PM CDT Thu Jun 18 2026

KSZ032-033-047>053-067>072-082-083-091>096-098>100-192315-
Russell-Lincoln-Barton-Ellsworth-Saline-Rice-McPherson-Marion-Chase-
Reno-Harvey-Butler-Greenwood-Woodson-Allen-Kingman-Sedgwick-Harper-
Sumner-Cowley-Elk-Wilson-Neosho-Chautauqua-Montgomery-Labette-
608 PM CDT Thu Jun 18 2026

This hazardous weather outlook is for portions of central Kansas,
east central Kansas, south central Kansas and southeast Kansas.

.DAY ONE...Tonight

Scattered showers and thunderstorms are possible this evening,
mainly for locations along and south of Highway 50. Some of these
storms could produce dime to quarter size hail, heavy rainfall, and
localized flooding concerns.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Thunderstorms could develop over the area again late Friday
afternoon and night, however The better chances for more widespread
thunderstorms to impact the region are on Saturday night. The
potential for severe thunderstorms with damaging winds and heavy
rainfall is increasing for this Saturday night period. The
thunderstorms could linger into the morning hours on Sunday. Please
continue to watch for updates as we refine the forecast.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

&&

For a graphical version of this information, see our webpage at:
https://www.weather.gov/erh/ghwo?wfo=ict

In the hours before

Local storm report, Jun 18, 8:01 PM CDT, 5 hours 49 minutes before

Preliminary Local Storm Report
National Weather Service Wichita KS
801 PM CDT Thu Jun 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0801 PM     Flood            2 N Wellington          37.30N 97.39W
06/18/2026                   Sumner             KS   NWS Employee

            Reported several inches of water flowing
            across US-81 in a few spots in north
            Wellington.

&&

Local storm report, Jun 18, 8:27 PM CDT, 5 hours 23 minutes before

Preliminary Local Storm Report
National Weather Service Wichita KS
827 PM CDT Thu Jun 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0826 PM     Flood            Wellington              37.27N 97.40W
06/18/2026                   Sumner             KS   NWS Employee

            Measured 8 inches of water over intersection
            of East 10th St and North C St.

&&

Local storm report, Jun 18, 8:55 PM CDT, 4 hours 55 minutes before

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Local storm report, Jun 18, 8:56 PM CDT, 4 hours 54 minutes before

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The office that day

Everything else NWS Wichita, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 8:01 PM CDT	Areal Flood Warning	ICT	Sumner	5 hr
Jun 18, 8:50 PM CDT	Flash Flood Warning Considerable damage threat	ICT	Sumner	4 hr
Jun 19, 5:17 PM CDT	Severe Thunderstorm Warning	ICT	Ellsworth, Lincoln, Saline	41 min

Nearby

River Flood Warnings in Kansas, 2026 Every river flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.