An unusually moist atmosphere (courtesy of Hurricane Newton remnants over western Mexico) in concert with subtle upper level disturbances approaching from the southwest combined to produced several bouts of very heavy rainfall across large portions of the area during the evening and overnight of September 8th and again during the evening of September 9th, 2016. Severe storms with quarter size hail and wind gusts to 60 mph during the evening hours of September 8th, eventually evolved into an extreme rainfall event.
Rainfall amounts proved extreme, with widespread 3 to 6 inch amounts across much of the southeast quarter of Kansas. Localized rainfall amounts even exceeded 8 to 10 inches during the evening of September 9th. Much of the rainfall came in relatively short periods, with rainfall rates at times exceeding 3 inches per hour.

Flash Flood in COWLEY, KANSAS
From 09-SEP-16 09:19:00 to 09-SEP-16 12:19:00 (CST-6)
Location: ROCK
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Roads were closed due to high water across the northern part of Cowley county.

Flash Flood in SUMNER, KANSAS
From 09-SEP-16 09:15:00 to 09-SEP-16 12:15:00 (CST-6)
Location: MULVANE
Flood cause: Heavy Rain
Property damage: 45.00K
Crop damage: 0.10K
Reported by: Fire Department/Rescue

Three water rescues occurred south of Mulvane, Kansas, due to cars being swept off the roadways by high water.

Flash Flood in WOODSON, KANSAS
From 09-SEP-16 11:47:00 to 09-SEP-16 14:47:00 (CST-6)
Location: YATES CENTER
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Public

High water led to the temporary closure of Highway 54 east of Yates Center.

Flash Flood in BUTLER, KANSAS
From 09-SEP-16 19:58:00 to 10-SEP-16 09:00:00 (CST-6)
Location: EL DORADO
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Several streets were flooded across the county, including in the communities of El Dorado, Andover and Augusta.

Hail in MCPHERSON, KANSAS
From 09-SEP-16 17:05:00 to 09-SEP-16 17:10:00 (CST-6)
Location: MC PHERSON
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in HARPER, KANSAS
From 09-SEP-16 19:00:00 to 09-SEP-16 19:00:00 (CST-6)
Location: ANTHONY
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Emergency Manager

Numerous four inch tree limbs were down across Anthony, Kansas.

Flood in SEDGWICK, KANSAS
From 09-SEP-16 18:37:00 to 09-SEP-16 20:37:00 (CST-6)
Location: HAYSVILLE
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Street flooding reported in Haysville, Kansas on south Kessler Road.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 19:04:00 to 09-SEP-16 21:04:00 (CST-6)
Location: MAIZE
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Water was flowing over the road on west 13th street between 119th and 135th streets.

Thunderstorm Wind in COWLEY, KANSAS
From 09-SEP-16 20:18:00 to 09-SEP-16 20:18:00 (CST-6)
Location: ARKANSAS CITY
Magnitude: 52.00 EG
Reported by: Emergency Manager

Two utility poles were downed on the Cowley county community college campus.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 19:04:00 to 09-SEP-16 21:04:00 (CST-6)
Location: (IAB) MCCONNELL ARPT
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Flooding was reported over 79th street on Kansas highway 42.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 19:10:00 to 09-SEP-16 21:10:00 (CST-6)
Location: MAIZE
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

A vehicle was stalled in high water near 13th and Firefly in Northwest Wichita.

Flash Flood in HARPER, KANSAS
From 09-SEP-16 19:32:00 to 09-SEP-16 22:32:00 (CST-6)
Location: HARPER
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Water was reported flowing over Kansas Highway 2 northeast of Harper, Kansas.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 19:31:00 to 09-SEP-16 22:31:00 (CST-6)
Location: WICHITA
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Numerous stalled vehicles and stranded motorists were reported across the Wichita metro area.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 20:02:00 to 09-SEP-16 23:02:00 (CST-6)
Location: EASTBOROUGH
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.10K
Reported by: Emergency Manager

Water was reported over the road at 2nd Street and Bleckley with stalled vehicles and water rescues in progress.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 19:49:00 to 09-SEP-16 21:49:00 (CST-6)
Location: EASTBOROUGH
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Water rescue was reported near 2nd street and Bleckley.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 20:15:00 to 09-SEP-16 23:15:00 (CST-6)
Location: EASTBOROUGH
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.10K
Reported by: Emergency Manager

Water was reported over the road at east Harry and Rock Road.  One vehicle was overturned in the water with two occupants rescued by fire units.

Flash Flood in HARPER, KANSAS
From 09-SEP-16 23:25:00 to 10-SEP-16 02:25:00 (CST-6)
Location: HARPER
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Law Enforcement

Four to five feet of water was covering northeast 100 road, due to Sand creek being out of its banks.

Flash Flood in SEDGWICK, KANSAS
From 10-SEP-16 01:10:00 to 10-SEP-16 03:10:00 (CST-6)
Location: OAKLAWN
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Trained Spotter

Briar Creek ran out of its banks just east of 47th and Woodlawn . The water was flowing rapidly across the bridge at a depth of 4 feet.

Flash Flood in SEDGWICK, KANSAS
From 10-SEP-16 05:16:00 to 10-SEP-16 08:16:00 (CST-6)
Location: CLEARWATER
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.10K
Reported by: Fire Department/Rescue

Three water rescues occurred near Clearwater, Kansas due to rising water from the Ninnescah River getting close to homes.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 03:35:00 to 09-SEP-16 06:35:00 (CST-6)
Location: PECK
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Trained Spotter

Numerous reports of closed roads were reported to the west of Mulvane, Kansas and southwest of Haysville, Kansas, due high water.

Flash Flood in GREENWOOD, KANSAS
From 09-SEP-16 22:00:00 to 10-SEP-16 05:35:00 (CST-6)
Location: REECE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Significant flooding was being reported across the county due to the heavy rains.  The heavy rain combined with the terrain was causing very treachorous conditions across much of the county.  The rocky soil conditions were not allowing for water penetration and most of the rain was running off into area creeks and streams producing several water covered roads across the county.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 02:35:00 to 09-SEP-16 05:35:00 (CST-6)
Location: DERBY
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.10K
Reported by: Emergency Manager

Significant flash flooding occurred in the town of Mulvane, Kansas. Three buildings in downtown were flooded.  Styx Creek ran out of banks and caused extensive flooding to homes along it.  A water rescue occurred in town due the high water.  A woman is safe after fast-moving water swept her vehicle into a ditch. She had been standing on top of her car and holding onto a tree while she was on the phone with 911.

Hail in KINGMAN, KANSAS
From 08-SEP-16 17:00:00 to 08-SEP-16 17:00:00 (CST-6)
Location: ZENDA
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in KINGMAN, KANSAS
From 08-SEP-16 17:17:00 to 08-SEP-16 17:17:00 (CST-6)
Location: RAGO
Magnitude: 61.00 EG
Property damage: 15.00K
Reported by: Law Enforcement

Law enforcement reports three foot diameter cottonwood trees were blown down.

Thunderstorm Wind in KINGMAN, KANSAS
From 08-SEP-16 17:47:00 to 08-SEP-16 17:47:00 (CST-6)
Location: NORWICH
Magnitude: 56.00 EG
Property damage: 15.00K
Reported by: Law Enforcement

Law enforcement reported six diameter tree limbs were reported down at a farm. Shingles were reported off of the roof as well.

Thunderstorm Wind in SEDGWICK, KANSAS
From 08-SEP-16 19:05:00 to 08-SEP-16 19:05:00 (CST-6)
Location: HAYSVILLE
Magnitude: 52.00 EG
Reported by: Social Media

Picture on twitter reported a four inch diameter tree top came down on a house.

Hail in MONTGOMERY, KANSAS
From 08-SEP-16 18:47:00 to 08-SEP-16 18:47:00 (CST-6)
Location: INDEPENDENCE
Magnitude: 1.00 
Reported by: Social Media

Picture of nickel to quarter size hail.

Hail in SEDGWICK, KANSAS
From 08-SEP-16 19:14:00 to 08-SEP-16 19:14:00 (CST-6)
Location: HAYSVILLE
Magnitude: 1.00 
Reported by: Public

Hail ranged in size from pea to quarter size hail.

Thunderstorm Wind in SEDGWICK, KANSAS
From 08-SEP-16 19:25:00 to 08-SEP-16 19:25:00 (CST-6)
Location: PECK
Magnitude: 52.00 EG
Reported by: Trained Spotter

A trained spotter reported 60 mph winds.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 01:50:00 to 09-SEP-16 05:50:00 (CST-6)
Location: CLEARWATER
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: NWS Employee

A National Weather Service Employee reported a rainfall amount of 9.13 inches, which caused water to flow across 71st Street just south of 135th Street.

Flash Flood in GREENWOOD, KANSAS
From 09-SEP-16 01:47:00 to 09-SEP-16 05:47:00 (CST-6)
Location: QUINCY
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

The Greenwood County Emergency Manager reported water flowing over Highway 54, one mile west of the Greenwood/Woodson county line.

Flood in ALLEN, KANSAS
From 09-SEP-16 02:05:00 to 09-SEP-16 07:05:00 (CST-6)
Location: HUMBOLDT
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Law Enforcement

The Allen County Sheriff reported all ditches and low lying areas were flooded with 6 inches of water being the greatest depth.

Flash Flood in WOODSON, KANSAS
From 09-SEP-16 04:51:00 to 09-SEP-16 09:51:00 (CST-6)
Location: YATES CENTER
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Law Enforcement

Numerous rural roads were flooded across the county, especially just to the east of Yates Center. Rainfall amounts of 3 to 4 inches were reported.

Flash Flood in ALLEN, KANSAS
From 09-SEP-16 04:52:00 to 09-SEP-16 09:52:00 (CST-6)
Location: HUMBOLDT
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Law Enforcement

Numerous county roads were flooded due to high water.

Flash Flood in BUTLER, KANSAS
From 09-SEP-16 04:12:00 to 09-SEP-16 08:12:00 (CST-6)
Location: ROSE HILL
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Significant road flooding occurred a few miles south of Rose Hill, Kansas.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 04:40:00 to 09-SEP-16 06:40:00 (CST-6)
Location: GODDARD
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Fire Department/Rescue

The fire department reported a water rescue from water over the road at west 21st street and North 199th street.

Flood in SUMNER, KANSAS
From 09-SEP-16 02:11:00 to 09-SEP-16 05:11:00 (CST-6)
Location: RIVERDALE
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Department of Highways

Water was overflowing the Kansas Turnpike at mile marker 29 just west of Belle Plaine.

Flood in KINGMAN, KANSAS
From 09-SEP-16 02:19:00 to 09-SEP-16 04:19:00 (CST-6)
Location: KINGMAN
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Emergency Manager

Street flooding was reported in the city of Kingman.

Flash Flood in BUTLER, KANSAS
From 09-SEP-16 05:59:00 to 09-SEP-16 08:59:00 (CST-6)
Location: ROSE HILL
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.10K
Reported by: Emergency Manager

A water occurred 2 miles east of Rose Hill for a vehicle trapped in high water.

Flash Flood in SEDGWICK, KANSAS
From 09-SEP-16 05:46:00 to 09-SEP-16 05:46:00 (CST-6)
Location: (ICT)WICHITA ARPT
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.10K
Reported by: Broadcast Media

A pickup truck was swept off highway K42 near the Cessna entrance. Report relayed by Kwch TV.