A slow moving cold front initiated thunderstorms across the Nebraska Sandhills during the late afternoon and evening of August 13th.  As this feature tracked into central Nebraska, it produced several severe storms with large hail and heavy rain, which led to flash flooding.

Hail in CUSTER, NEBRASKA
From 13-AUG-17 17:50:00 to 13-AUG-17 17:50:00 (CST-6)
Location: ANSELMO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CUSTER, NEBRASKA
From 13-AUG-17 16:50:00 to 13-AUG-17 16:50:00 (CST-6)
Location: ANSELMO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CUSTER, NEBRASKA
From 13-AUG-17 16:05:00 to 13-AUG-17 16:05:00 (CST-6)
Location: ANSELMO
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail up to the size of ping pong balls covered the ground at this location.

Hail in CUSTER, NEBRASKA
From 13-AUG-17 16:18:00 to 13-AUG-17 16:18:00 (CST-6)
Location: ANSELMO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in CUSTER, NEBRASKA
From 13-AUG-17 17:34:00 to 13-AUG-17 17:34:00 (CST-6)
Location: MERNA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Street flooding reported in several locations in Merna.

Hail in CUSTER, NEBRASKA
From 13-AUG-17 16:59:00 to 13-AUG-17 16:59:00 (CST-6)
Location: ANSELMO
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in CUSTER, NEBRASKA
From 13-AUG-17 17:17:00 to 13-AUG-17 17:17:00 (CST-6)
Location: MERNA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Hail in CUSTER, NEBRASKA
From 13-AUG-17 17:24:00 to 13-AUG-17 17:24:00 (CST-6)
Location: MERNA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CUSTER, NEBRASKA
From 13-AUG-17 17:34:00 to 13-AUG-17 17:34:00 (CST-6)
Location: MERNA
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in CUSTER, NEBRASKA
From 13-AUG-17 18:05:00 to 13-AUG-17 18:05:00 (CST-6)
Location: BROKEN BOW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reports numerous roads covered with water up to the top of curbs.

Hail in CUSTER, NEBRASKA
From 13-AUG-17 17:46:00 to 13-AUG-17 17:46:00 (CST-6)
Location: BROKEN BOW
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in CUSTER, NEBRASKA
From 13-AUG-17 18:25:00 to 13-AUG-17 18:25:00 (CST-6)
Location: MERNA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CUSTER, NEBRASKA
From 13-AUG-17 18:45:00 to 13-AUG-17 18:45:00 (CST-6)
Location: BERWYN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in CUSTER, NEBRASKA
From 13-AUG-17 18:53:00 to 13-AUG-17 18:53:00 (CST-6)
Location: CALLAWAY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LOGAN, NEBRASKA
From 13-AUG-17 19:05:00 to 13-AUG-17 19:05:00 (CST-6)
Location: LOGAN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CUSTER, NEBRASKA
From 13-AUG-17 19:31:00 to 13-AUG-17 19:31:00 (CST-6)
Location: OCONTO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CUSTER, NEBRASKA
From 13-AUG-17 19:33:00 to 13-AUG-17 19:33:00 (CST-6)
Location: OCONTO
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CUSTER, NEBRASKA
From 13-AUG-17 19:36:00 to 13-AUG-17 19:36:00 (CST-6)
Location: OCONTO
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRONTIER, NEBRASKA
From 13-AUG-17 21:57:00 to 13-AUG-17 21:57:00 (CST-6)
Location: EUSTIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in FRONTIER, NEBRASKA
From 13-AUG-17 22:13:00 to 13-AUG-17 22:13:00 (CST-6)
Location: EUSTIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 50.00K
Reported by: COOP Observer

Hail did severe damage to crops at this location.

Thunderstorm Wind in FRONTIER, NEBRASKA
From 13-AUG-17 22:13:00 to 13-AUG-17 22:13:00 (CST-6)
Location: EUSTIS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Tree damage along with property damage reported in Eustis.

Thunderstorm Wind in CUSTER, NEBRASKA
From 13-AUG-17 18:45:00 to 13-AUG-17 18:45:00 (CST-6)
Location: BERWYN
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser