Thunderstorms produced a lot of severe hail on this Monday afternoon and evening. Thirty-one reports of hail were received with the largest the size of tennis balls. Just after 4 PM CST, the first storm began moving into Harlan county from north central Kansas. This supercell storm dropped quarter size hail west of Alma. Between 415 and 430 PM CST, this storm split. The left-mover moved north-northeast along the Phelps-Kearney county line into Buffalo county. Multiple reports of hail were received over south central Buffalo county, including on the west and north sides of Kearney, where quarter to ping pong ball size hail fell. Hail up to two inches in diameter occurred north of Riverdale and east of Amherst. This long-lived storm continued moving north-northeast, producing severe hail across parts of Sherman, Howard, and Greeley counties through 630 PM CST. The largest hail was the size of tennis balls between Loup City and Rockville. The right-moving storm continued producing severe hail up to ping pong ball size from northern Franklin into southwest Adams county. While these two storms were in progress, other scattered storms developed, forming a broken line from near McCook northeast to near Columbus. Another supercell formed over northern Kansas and moved into Furnas county. Between 515 and 530 PM CST, this supercell split, with the left-mover producing 2 to 2.5 inch hail between Cambridge and Holbrook. This storm moved north-northeast across Gosper and Dawson counties through 630 PM CST. The only other hail reported with this storm was the size of half dollars in the town of Eddyville. The last storm known to produce severe hail occurred at Grand Island, where nickel to quarter size hail occurred between 730 and 800 PM CST. Severe weather was not reported with any of the other storms during this event. Despite the large number of storms, the convective mode remained cellular and supercellular. The entire area of scattered storms moved northeast and out of south central Nebraska by 1030 PM CST.
These storms formed along and just north of a slow-moving cold front. This front was associated with a 1005 mb low over Minnesota. A dryline intersected the front near McCook and extended south through northwest Kansas. In the upper-levels, the longwaves were highly-amplified with an anomalous subtropical high over the Tennessee Valley, and a deep low over the Northern Rockies. Strong southwest flow was over Nebraska. Where the initial thunderstorms erupted, temperatures were in the middle 90s, with dewpoints in the lower to middle 60s. Mid-level lapse rates were poor, but MLCAPE was still between 1500 and 2200 J/kg, with a southwest-northeast gradient along the front. Deep layer shear was 40-50 kt. Effective SRH was between 150 and 200 m2/s2, with even higher values on the cold side of the front. The lack of strong forcing aloft, combined with the low-level and deep-layer shear contributed to a cellular convective mode, some of which were supercells.

Hail in HARLAN, NEBRASKA
From 30-SEP-19 16:19:00 to 30-SEP-19 16:19:00 (CST-6)
Location: ORLEANS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRANKLIN, NEBRASKA
From 30-SEP-19 17:35:00 to 30-SEP-19 17:35:00 (CST-6)
Location: UPLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, NEBRASKA
From 30-SEP-19 18:05:00 to 30-SEP-19 18:05:00 (CST-6)
Location: HOLSTEIN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DAWSON, NEBRASKA
From 30-SEP-19 18:30:00 to 30-SEP-19 18:30:00 (CST-6)
Location: EDDYVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in HALL, NEBRASKA
From 30-SEP-19 19:38:00 to 30-SEP-19 19:38:00 (CST-6)
Location: GRAND IS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HALL, NEBRASKA
From 30-SEP-19 19:40:00 to 30-SEP-19 19:40:00 (CST-6)
Location: GRAND IS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MERRICK, NEBRASKA
From 30-SEP-19 20:02:00 to 30-SEP-19 20:02:00 (CST-6)
Location: CHAPMAN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in FRANKLIN, NEBRASKA
From 30-SEP-19 17:16:00 to 30-SEP-19 17:16:00 (CST-6)
Location: MACON
Magnitude: 1.50 
Property damage: 25.00K
Crop damage: 250.00K
Reported by: Public

Hail in FURNAS, NEBRASKA
From 30-SEP-19 17:28:00 to 30-SEP-19 17:31:00 (CST-6)
Location: HOLBROOK
Magnitude: 2.50 
Property damage: 150.00K
Crop damage: 1.00M
Reported by: Public

Hail stones of 2 to 2.5 inches in diameter was reported along this path.

Hail in SHERMAN, NEBRASKA
From 30-SEP-19 18:04:00 to 30-SEP-19 18:04:00 (CST-6)
Location: ROCKVILLE
Magnitude: 2.50 
Property damage: 150.00K
Crop damage: 1.00M
Reported by: Emergency Manager

Emergency Manager reported hail anywhere from golf ball to tennis ball size at the intersection of Highway 58 and 784th Road.

Hail in HOWARD, NEBRASKA
From 30-SEP-19 18:15:00 to 30-SEP-19 18:15:00 (CST-6)
Location: COTESFIELD
Magnitude: 1.75 
Property damage: 75.00K
Crop damage: 500.00K
Reported by: Social Media

Hail in BUFFALO, NEBRASKA
From 30-SEP-19 17:19:00 to 30-SEP-19 17:34:00 (CST-6)
Location: KEARNEY
Magnitude: 2.00 
Property damage: 150.00K
Crop damage: 1.00M
Reported by: NWS Employee

Most hail stones along and near this path were quarter to half dollar size, but hail up to 2 inches in diameter was reported north of Riverdale.

Hail in GREELEY, NEBRASKA
From 30-SEP-19 18:26:00 to 30-SEP-19 18:27:00 (CST-6)
Location: SCOTIA
Magnitude: 1.75 
Property damage: 75.00K
Crop damage: 250.00K
Reported by: Trained Spotter