Robust convection developed ahead of and along a strong cold front that slowly moved through the central plains states.  A copious amount of moisture in place across the region, and continually streaming northward from the Gulf of Mexico made for efficient rainfall producing thunderstorms. Flash flooding was noted at several locations across east central and northeast Kansas where up to 5.5 inches of rain fell in a few hour period. Street flooding was reported at numerous locations, but standing water in roadways was typically less than 6 inches deep. Rainfall rates up to two inches per hour were noted by trained observers with rain gauges. Storm total rainfall amounts of three to four inches were common across much of the area. Notable amounts from trained observers include 4.10 inches seven miles west-northwest of Paxico (Wabaunsee County), 4.15 inches three miles east-northeast of Belvue (Pottawatomie County), 4.10 inches in Silver Lake (Shawnee County), 4.60 inches five miles east of Emmett (Jackson County), 5.00 inches seven miles northwest of Hoyt (Jackson County). A water rescue was performed in the city of Topeka, and a second near Paxico in Wabaunsee County. No deaths or injuries were reported.

Flash Flood in POTTAWATOMIE, KANSAS
From 26-APR-09 20:43:00 to 26-APR-09 22:00:00 (CST-6)
Location: ST MARYS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water reported to be running over Hwy 24 one mile west of St. Mary's rendering the roadway impassable.

Flash Flood in JACKSON, KANSAS
From 26-APR-09 20:21:00 to 26-APR-09 22:00:00 (CST-6)
Location: DELIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water reported to be running over K Road between 118 and 126 Roads rendering the roadways impassable.

Flash Flood in OSAGE, KANSAS
From 26-APR-09 20:46:00 to 26-APR-09 22:45:00 (CST-6)
Location: CARBONDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water rescue completed one and a half miles east of Kansas Hwy-99.  A person was trapped in their vehicle due to flash flood waters. Neither a death or injury was reported.

Flash Flood in JEFFERSON, KANSAS
From 26-APR-09 20:43:00 to 26-APR-09 21:30:00 (CST-6)
Location: PERRY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

One foot of water reported to be running over portions of Cedar Street in the town of Perry.

Flash Flood in JEFFERSON, KANSAS
From 26-APR-09 20:43:00 to 26-APR-09 22:00:00 (CST-6)
Location: MERIDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Water reported to be running over the intersection of 82nd and Meriden Roads, rendering the roadway impassable.

Flash Flood in RILEY, KANSAS
From 29-APR-09 21:14:00 to 29-APR-09 23:00:00 (CST-6)
Location: OGDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several reports of flash flooding on roadways in Riley County.  Closures due to high running water were noted on Eureka Drive and Roever Road north of the Manhattan Regional Airport, as well as along Skyway Drive and Airport Road to the southeast of the Manhattan Airport runways. Near Ogden, Honeydew Lane on the northeast side of town was inundated by flash flood waters.

Flash Flood in DICKINSON, KANSAS
From 26-APR-09 20:15:00 to 26-APR-09 23:00:00 (CST-6)
Location: CARLTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several police officers in the field relayed to dispatch locations where flash flooding occurred. First, water up to four feet deep was reported to be running over Solomon Road one mile north of K-4 Highway. Officers in the town of Hope reported water several inches deep running over K-4 Highway. North of town, several locations along Highway 43 were also reported to have water flowing over the roadway.

Flash Flood in WABAUNSEE, KANSAS
From 26-APR-09 19:24:00 to 26-APR-09 21:00:00 (CST-6)
Location: ALMA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Police officers reported locations along and near Hwy 99. Notably, several inches of water was reported to be flowing over Hwy 18 just west of it's intersection with Hwy 99.  Water was also reported to be flowing over several portions of Hwy 99 near Alma, and on Paxico Road near Newberry.

Flash Flood in JACKSON, KANSAS
From 26-APR-09 18:40:00 to 26-APR-09 21:00:00 (CST-6)
Location: DELIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Six inches of water reported to be flowing over 106th Road between G and H Roads.

Flash Flood in SHAWNEE, KANSAS
From 26-APR-09 20:05:00 to 26-APR-09 23:00:00 (CST-6)
Location: TOPEKA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several reports of flash flooding in the city of Topeka. At the intersection of 29th and Kansas, a car was reported to be floating in the roadway as a result of high water in the intersection.  It's estimated that the depth of water in the intersection was two feet.  Water rescue teams were dispatched to the scene, but no injuries or deaths were reported.