Two primary supercells moved southeast from Cherry County and vicinity toward Custer County during the late morning and afternoon. An additional round of storms consisting of a linear system and a supercell moved through north central Nebraska later in the evening. Wind gusts were estimated up to 100 mph and hail to tennis ball size, while multiple reports of damaged crops and flooded buildings were received during the event.

Thunderstorm Wind in CHERRY, NEBRASKA
From 10-JUL-20 10:55:00 to 10-JUL-20 10:55:00 (CST-6)
Location: SPARKS
Magnitude: 61.00 EG
Reported by: Broadcast Media

The combination of high winds and hail resulted in extensive crop damage. Wind gusts were estimated at least 70 mph.

Thunderstorm Wind in CHERRY, NEBRASKA
From 10-JUL-20 11:00:00 to 10-JUL-20 11:00:00 (CST-6)
Location: SPARKS
Magnitude: 61.00 EG
Reported by: Broadcast Media

Several trees were downed and power was knocked out to Lakeview.

Thunderstorm Wind in CHERRY, NEBRASKA
From 10-JUL-20 11:03:00 to 10-JUL-20 11:03:00 (CST-6)
Location: SPARKS
Magnitude: 52.00 EG
Reported by: Public

Public estimated 60 mph wind gusts near Sparks.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 19:50:00 to 10-JUL-20 19:50:00 (CST-6)
Location: MERRIMAN
Magnitude: 1.75 
Reported by: Public

Public reported golf ball size hail southeast of Merriman.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 19:55:00 to 10-JUL-20 19:55:00 (CST-6)
Location: CODY
Magnitude: 1.00 
Reported by: Trained Spotter

A trained weather spotter reported quarter size hail south of Cody.

Thunderstorm Wind in CHERRY, NEBRASKA
From 10-JUL-20 20:49:00 to 10-JUL-20 20:49:00 (CST-6)
Location: MERRITT RES
Magnitude: 51.00 MG
Reported by: RAWS

McKelvie National Forest measured 59 mph wind gust.

Thunderstorm Wind in ROCK, NEBRASKA
From 10-JUL-20 21:00:00 to 10-JUL-20 21:00:00 (CST-6)
Location: BASSETT
Magnitude: 52.00 EG
Reported by: Trained Spotter

A trained weather spotter reported a large tree branch downed in Bassett.

Thunderstorm Wind in BLAINE, NEBRASKA
From 10-JUL-20 23:43:00 to 10-JUL-20 23:43:00 (CST-6)
Location: PURDUM
Magnitude: 52.00 EG
Reported by: Trained Spotter

A trained weather spotter reported a large tree branch downed near Purdum.

Thunderstorm Wind in BROWN, NEBRASKA
From 10-JUL-20 11:25:00 to 10-JUL-20 11:25:00 (CST-6)
Location: JOHNSTOWN
Magnitude: 52.00 EG
Reported by: Public

Public estimated wind gusts up to 60 mph north of Johnstown.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 12:55:00 to 10-JUL-20 12:55:00 (CST-6)
Location: MERRITT RES
Magnitude: 1.00 
Reported by: Public

Public reported hail up to quarter size southwest of Merritt Reservoir.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 13:15:00 to 10-JUL-20 13:15:00 (CST-6)
Location: BROWNLEE
Magnitude: 2.00 
Reported by: Public

Public reported hail up to 2 inches in diameter near Brownlee.

Thunderstorm Wind in CHERRY, NEBRASKA
From 10-JUL-20 13:27:00 to 10-JUL-20 13:27:00 (CST-6)
Location: BROWNLEE
Magnitude: 52.00 EG
Reported by: Trained Spotter

A trained weather spotter estimated 60 mph wind gusts north of Brownlee.

Thunderstorm Wind in CHERRY, NEBRASKA
From 10-JUL-20 13:33:00 to 10-JUL-20 13:33:00 (CST-6)
Location: BROWNLEE
Magnitude: 61.00 EG
Reported by: Broadcast Media

A semi truck was blown over on U.S. Highway 83 near Brownlee with estimated 70 mph winds.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 14:10:00 to 10-JUL-20 14:10:00 (CST-6)
Location: ELSMERE
Magnitude: 1.00 
Reported by: Public

Public reported quarter size hail near Elsmere.

Thunderstorm Wind in BLAINE, NEBRASKA
From 10-JUL-20 14:25:00 to 10-JUL-20 14:25:00 (CST-6)
Location: DUNNING
Magnitude: 52.00 MG
Reported by: Mesonet

Nebraska mesonet site northwest of Dunning measured a 60 mph wind gust.

Hail in BLAINE, NEBRASKA
From 10-JUL-20 14:45:00 to 10-JUL-20 14:45:00 (CST-6)
Location: DUNNING
Magnitude: 1.75 
Reported by: Trained Spotter

A trained weather spotter reported golf ball size hail southeast of Dunning.

Thunderstorm Wind in CUSTER, NEBRASKA
From 10-JUL-20 15:00:00 to 10-JUL-20 15:00:00 (CST-6)
Location: MILBURN
Magnitude: 87.00 EG
Reported by: Trained Spotter

A trained weather spotter estimated wind gusts near 100 mph at Gates.

Thunderstorm Wind in CUSTER, NEBRASKA
From 10-JUL-20 15:12:00 to 10-JUL-20 15:12:00 (CST-6)
Location: GATES
Magnitude: 61.00 EG
Reported by: Public

Public reported wind gusts of at least 70 mph near Gates.

Thunderstorm Wind in CUSTER, NEBRASKA
From 10-JUL-20 15:40:00 to 10-JUL-20 15:40:00 (CST-6)
Location: (BBW)BROKEN BOW ARPT
Magnitude: 65.00 MG
Reported by: ASOS

KBBW measured a 65 kt wind gust.

Thunderstorm Wind in CUSTER, NEBRASKA
From 10-JUL-20 16:05:00 to 10-JUL-20 16:05:00 (CST-6)
Location: MASON CITY
Magnitude: 61.00 EG
Reported by: Trained Spotter

A trained weather spotter estimated wind gusts up to 70 mph near Mason City.

Thunderstorm Wind in CUSTER, NEBRASKA
From 10-JUL-20 16:07:00 to 10-JUL-20 16:07:00 (CST-6)
Location: BROKEN BOW
Magnitude: 52.00 EG
Reported by: Emergency Manager

Large trees were downed in Broken Bow.

Hail in CUSTER, NEBRASKA
From 10-JUL-20 16:15:00 to 10-JUL-20 16:15:00 (CST-6)
Location: MASON CITY
Magnitude: 1.00 
Reported by: Public

Public reported quarter size hail in Mason City.

Hail in CUSTER, NEBRASKA
From 10-JUL-20 16:15:00 to 10-JUL-20 16:15:00 (CST-6)
Location: ANSLEY
Magnitude: 1.75 
Reported by: Emergency Manager

Golf ball size hail caused crop damage near Ansley.

Thunderstorm Wind in CUSTER, NEBRASKA
From 10-JUL-20 16:40:00 to 10-JUL-20 16:40:00 (CST-6)
Location: MASON CITY
Magnitude: 52.00 EG
Reported by: Trained Spotter

Large cottonwood trees were bending over due to high winds south of Mason City.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 19:15:00 to 10-JUL-20 19:15:00 (CST-6)
Location: MERRIMAN
Magnitude: 1.75 
Reported by: Trained Spotter

A trained weather spotter reported golf ball size hail northwest of Merriman.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 19:15:00 to 10-JUL-20 19:15:00 (CST-6)
Location: MERRIMAN
Magnitude: 2.00 
Reported by: Trained Spotter

A trained weather spotter reported hail to two inches in diameter northwest of Merriman.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 19:23:00 to 10-JUL-20 19:23:00 (CST-6)
Location: MERRIMAN
Magnitude: 2.00 
Reported by: Public

Public reported two inch diameter hail in Merriman.

Hail in CHERRY, NEBRASKA
From 10-JUL-20 19:39:00 to 10-JUL-20 19:39:00 (CST-6)
Location: ELI
Magnitude: 2.50 
Reported by: Trained Spotter

A trained weather spotter reported tennis ball size hail south of Eli.

Hail in CUSTER, NEBRASKA
From 11-JUL-20 00:45:00 to 11-JUL-20 00:45:00 (CST-6)
Location: MILBURN
Magnitude: 2.00 
Reported by: Emergency Manager

A report of two inch diameter hail near Milburn was forwarded via social media.

Hail in CUSTER, NEBRASKA
From 10-JUL-20 16:15:00 to 10-JUL-20 16:15:00 (CST-6)
Location: ANSLEY
Magnitude: 1.75 
Reported by: Emergency Manager

Hail estimated up to golf ball size resulted in significant crop damage between Ansley and Mason City.

Hail in CUSTER, NEBRASKA
From 10-JUL-20 15:15:00 to 10-JUL-20 15:15:00 (CST-6)
Location: GATES
Magnitude: 1.75 
Reported by: Emergency Manager

Large hail and strong winds resulted in a five mile swath of corn being shredded. Radar data and surrounding reports suggest at least golf ball size.

Flash Flood in CUSTER, NEBRASKA
From 10-JUL-20 16:09:00 to 10-JUL-20 16:09:00 (CST-6)
Location: BROKEN BOW
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Torrential rainfall caused flooding at a golf course near Broken Bow.

Flash Flood in CUSTER, NEBRASKA
From 10-JUL-20 16:30:00 to 10-JUL-20 16:30:00 (CST-6)
Location: MASON CITY
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flood waters washed out the footers of a building.

Flash Flood in CUSTER, NEBRASKA
From 10-JUL-20 16:30:00 to 10-JUL-20 16:30:00 (CST-6)
Location: BROKEN BOW
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Custer County Fairgrounds is under water. Water is standing or flowing all across town.

Flash Flood in CHERRY, NEBRASKA
From 10-JUL-20 20:00:00 to 10-JUL-20 20:00:00 (CST-6)
Location: CODY
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained weather spotter reports basement is filling with water.

Flood in CHERRY, NEBRASKA
From 10-JUL-20 20:50:00 to 10-JUL-20 20:50:00 (CST-6)
Location: VALENTINE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Nearly one inch of rain in 30 minutes caused minor flooding.