Several rounds of thunderstorms along a stationary frontal boundary resulted in significant flash-flooding in portions of Riley, Marshall, and Pottawatomie Counties. Numerous damaging wind reports were noted as well.

Thunderstorm Wind in OTTAWA, KANSAS
From 02-SEP-18 16:14:00 to 02-SEP-18 16:15:00 (CST-6)
Location: BENNINGTON
Magnitude: 61.00 EG
Reported by: Trained Spotter

Wind gusts estimated between 60 and 70 MPH. Very heavy rainfall also reported.

Thunderstorm Wind in OTTAWA, KANSAS
From 02-SEP-18 17:25:00 to 02-SEP-18 17:26:00 (CST-6)
Location: TESCOTT
Magnitude: 52.00 EG
Reported by: Public

Estimated wind speeds of 60 MPH.

Thunderstorm Wind in WASHINGTON, KANSAS
From 02-SEP-18 17:25:00 to 02-SEP-18 17:26:00 (CST-6)
Location: GREENLEAF
Magnitude: 52.00 EG
Reported by: Trained Spotter

Estimated wind gust of 60 MPH.

Thunderstorm Wind in OTTAWA, KANSAS
From 02-SEP-18 17:37:00 to 02-SEP-18 17:38:00 (CST-6)
Location: TESCOTT
Magnitude: 52.00 EG
Reported by: Trained Spotter

Tree limbs 2-3 inches in diameter were reported down.

Flash Flood in MARSHALL, KANSAS
From 02-SEP-18 18:55:00 to 02-SEP-18 20:25:00 (CST-6)
Location: MARYSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Water was flowing over numerous roads in Marysville.

Thunderstorm Wind in MARSHALL, KANSAS
From 02-SEP-18 19:00:00 to 02-SEP-18 19:01:00 (CST-6)
Location: BESTWALL
Magnitude: 52.00 EG
Reported by: Storm Chaser

Estimated wind gust of 60 MPH. Tree limbs were reported down although the size was unknown.

Flash Flood in MARSHALL, KANSAS
From 02-SEP-18 20:20:00 to 02-SEP-18 21:50:00 (CST-6)
Location: HERKIMER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Highway 77 had up to a foot of water flowing across the road.

Flash Flood in OTTAWA, KANSAS
From 02-SEP-18 20:45:00 to 02-SEP-18 22:15:00 (CST-6)
Location: CULVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roadways were under water, including the intersections at K-18/90th road and Mulberry road/60th road.

Flash Flood in MARSHALL, KANSAS
From 02-SEP-18 21:10:00 to 02-SEP-18 22:50:00 (CST-6)
Location: SCHROYER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Highway 77 near Osage Road is closed due to high water. Estimated 10-12 inches of running water across the road. A water rescue occurred.

Flash Flood in RILEY, KANSAS
From 02-SEP-18 23:00:00 to 03-SEP-18 00:30:00 (CST-6)
Location: TUTTLE CREEK RES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Delayed report of running water over roads in and near Fancy Creek State Park.

Flash Flood in MARSHALL, KANSAS
From 02-SEP-18 23:04:00 to 03-SEP-18 00:34:00 (CST-6)
Location: SCHROYER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A bridge was washed out near the intersection of East River Road and Osage Road.

Flash Flood in POTTAWATOMIE, KANSAS
From 03-SEP-18 03:05:00 to 03-SEP-18 04:35:00 (CST-6)
Location: MANHATTAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

High water caused a mudslide that covered the roadway, making it impassable on Blue River Road.

Flash Flood in RILEY, KANSAS
From 03-SEP-18 04:21:00 to 03-SEP-18 05:51:00 (CST-6)
Location: ROCKY FORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Multiple roads were impassable due to high water overflowing the road.

Flash Flood in RILEY, KANSAS
From 03-SEP-18 08:55:00 to 03-SEP-18 10:25:00 (CST-6)
Location: MANHATTAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Road closure on Fort Riley Boulevard from Westwood to Richards due to water over the bridge.

Flash Flood in CLOUD, KANSAS
From 03-SEP-18 19:11:00 to 03-SEP-18 20:41:00 (CST-6)
Location: JAMESTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadway closed due to water across the road approximately 8 miles west of Concordia.

Flash Flood in RILEY, KANSAS
From 03-SEP-18 03:15:00 to 03-SEP-18 04:45:00 (CST-6)
Location: KEATS
Flood cause: Heavy Rain
Property damage: 17.20M
Crop damage: 20.00K
Reported by: Emergency Manager

Residents in the city of Keats were being evacuated due to the rapidly rising water on Wildcat Creek.  The flooding of Wildcat creek resulted in an estimated 17.2 million dollars in losses to property.