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NWS Topeka KSFL.W 0065October 2, 2026

Flood Warning: Lyon and Osage, KS

The National Weather Service office in Topeka issued a flood warning for Lyon and Osage in Kansas, which was in force until 12:05 a.m. local time on October 3. It was the 65th river flood warning the NWS office in Topeka issued in 2026. Kansas had 43 flood warnings in October 2026, against 14 in an average October of 2008-2025 (Kansas's flood warnings by year).

ExpiredWarning

Issued3:21 a.m. CDT, October 2, 2026
In force3:21 a.m. CDT, October 2, 2026
Expired12:05 a.m. CDT, October 3, 2026

In force for 20.7 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Topeka KS
Area
Lyon and Osage
State
Kansas
Level
Warning
Issued
3:21 a.m. CDT, October 2, 2026
Expires
12:05 a.m. CDT, October 3, 2026
CAP severity, certainty, urgency
Severe, Observed, Immediate
VTEC event
KTOP FL.W 0065
Official source
National Weather Service: the notice at its source

Flood Warnings in Kansas since 2008Every warning type in Kansas

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

...The Flood Warning is extended for the following rivers in Kansas... Salt Creek near Lyndon affecting Osage County. Mill Creek Near Paxico affecting Wabaunsee County. Vermillion Creek near Wamego affecting Pottawatomie County. Big Blue River near Blue Rapids affecting Marshall County. ...The Flood Warning continues for the following rivers in Kansas... Rock Creek near Louisville affecting Pottawatomie County. Marais Des Cygnes River above Reading affecting Lyon and Osage Counties. Black Vermillion River near Frankfort affecting Marshall County. Little Blue River near Barnes affecting Washington and Marshall Counties. Solomon River near Glasco affecting Cloud County. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Marais Des Cygnes River above Reading. * WHEN...Until late tonight. * IMPACTS...At 19.0 feet, Low lying areas along the river flood. At 21.0 feet, County Road Y 5 near the gage floods, 3 miles north of Reading. At 23.0 feet, Overlow on the right bank is in several swift channels over Road Y 5, 3 miles north of Reading. * ADDITIONAL DETAILS... - At 3:00 AM CDT Friday the stage was 22.1 feet. - Forecast...The river is expected to fall below flood stage this afternoon and continue falling to 2.6 feet early Wednesday morning. - Flood stage is 19.0 feet.

What the agency told people to do

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product along with additional weather and stream information is available at www.weather.gov/top/.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice