This was an active late Friday evening-early Saturday morning across this six-county North Central Kansas area, featuring limited severe weather in Rooks/Phillips counties and some relatively minor flooding mainly within the northeast one-third of Mitchell County. But for the majority of the area this was just a classic, stormy early-summer night (most places measured between 0.50-2.00 inches of rain). As for the handful of severe weather reports, the main issue was a brief burst of intense winds through Rooks County around 2 a.m. CDT, including measured unofficial gusts of 68 MPH north-northeast of Codell, 62 MPH in Stockton and 61 MPH at Plainville (no known damage reports). Hail-wise, the only report featured quarter size stones east of Phillipsburg shortly after 11 p.m. CDT. Regarding heavy rainfall/flooding, primarily northeast Mitchell County was drenched with multiple downpours between midnight-4 a.m. CDT, with several automated gauges and NWS/CoCoRaHS observers tallying 3-5, including 5.05 just northeast of Beloit (unofficial public report of 6 at Simpson). This prompted relatively minor/short-term flash flooding and areal flooding, and also drove the Solomon River out of its banks as the Beloit gauge crested around 22.4 feet on the afternoon of the 27th (flood stage 20 feet).
Timing-wise, there were basically two main rounds of convection. The first round (mainly 10 p.m. to 2 a.m. CDT) featured generally isolated to scattered coverage, as storms developed directly overhead in response to the onset of a 30-40 knot southerly low level jet (evident at 850 millibars). Then, primarily 2-4 a.m. CDT the next round charged in from the west in the form of a fairly compact linear mesoscale convective system (MCS) that had gotten its act together well before midnight along the KS/CO border. By 4 a.m. CDT, storm intensity had waned considerably across local counties, although mainly stratiform lighter rain held on through around sunrise. This was a fairly typical setup for active nocturnal storms in the Central Plains. In the mid-upper levels, broad zonal flow reigned as a low amplitude wave rode eastward out of CO during the night. Meanwhile at the surface, a nearly stationary front resided directly through the area in east-northeast to west-southwest fashion, as evening dewpoints averaged mid-60s to around 70 F. Though fairly warm mid-level temps/weak capping held storms at bay until after sunset, the onset of the low level jet easily sparked convection given a healthy reservoir of 2000-3000 J/kg most-unstable CAPE, with the main limiting factor to a more robust severe threat being only modest deep-layer wind shear around 30 knots.

Hail in PHILLIPS, KANSAS
From 26-JUN-20 22:13:00 to 26-JUN-20 22:13:00 (CST-6)
Location: PHILLIPSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in ROOKS, KANSAS
From 27-JUN-20 01:03:00 to 27-JUN-20 01:03:00 (CST-6)
Location: STOCKTON
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Measured at Rooks County Regional Airport.

Thunderstorm Wind in ROOKS, KANSAS
From 27-JUN-20 01:06:00 to 27-JUN-20 01:06:00 (CST-6)
Location: PLAINVILLE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in ROOKS, KANSAS
From 27-JUN-20 01:14:00 to 27-JUN-20 01:14:00 (CST-6)
Location: CODELL
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in ROOKS, KANSAS
From 27-JUN-20 01:15:00 to 27-JUN-20 01:15:00 (CST-6)
Location: STOCKTON
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in ROOKS, KANSAS
From 27-JUN-20 01:16:00 to 27-JUN-20 01:16:00 (CST-6)
Location: CODELL
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy Rain in MITCHELL, KANSAS
From 26-JUN-20 06:00:00 to 27-JUN-20 06:00:00 (CST-6)
Location: SIMPSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An unofficial 24-hour rainfall amount of 6 inches was reported.

Heavy Rain in MITCHELL, KANSAS
From 26-JUN-20 06:00:00 to 27-JUN-20 06:00:00 (CST-6)
Location: BELOIT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24-hour rainfall amount of 5.05 inches was reported by a CoCoRaHs observer. In the south part of town, the NWS cooperative observer measured 4.20 inches.

Heavy Rain in MITCHELL, KANSAS
From 26-JUN-20 06:00:00 to 27-JUN-20 06:00:00 (CST-6)
Location: SCOTTSVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24-hour rainfall amount of 4.56 inches was reported.

Flash Flood in MITCHELL, KANSAS
From 27-JUN-20 01:30:00 to 27-JUN-20 06:00:00 (CST-6)
Location: GLEN ELDER
Flood cause: Heavy Rain
Property damage: 125.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread rainfall amounts of 3 to 6 inches were reported across the area, with the primary impact being numerous rural roads being covered in water and closed.