A cluster of thunderstorms became stationary over Dundy County during the evening of the 23rd.  The storm activity spread to the south and west through the rest of the 23rd into the 24th before ending from west to east.  When the rainfall ended, over nine inches of rain had occurred roughly along CR 709, with lesser amounts to the north and south.  Roads were washed out in many places, and the AM Track train was stranded at Haigler due to the tracks being washed out somewhere between Haigler and Parks.  Highway 34 was closed from Benkelman to Highway 385 in Yuma County Colorado due to flooding. The Republican River at Benkelman reached a peak height of almost nine and a half feet.
The flood waters extended east into Hitchcock County, where the river gauge at Stratton measured a stage just below the record stage of 11 feet.

Flood in HITCHCOCK, NEBRASKA
From 25-JUL-20 13:00:00 to 26-JUL-20 03:00:00 (CST-6)
Location: STRATTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Runoff from prolonged heavy rainfall in Dundy County caused the Republican River to surpass flood stage in the western part of Hitchcock County, from the county line to Stratton. The flood waters did not cause any damage to buildings, roads, or bridges along the river channel. In addition, the river stage at Stratton was just under 11 feet, which is just below the record stage for the site.

Flash Flood in HITCHCOCK, NEBRASKA
From 25-JUL-20 10:00:00 to 25-JUL-20 13:00:00 (CST-6)
Location: STRATTON
Flood cause: Heavy Rain
Property damage: 0.10K
Crop damage: 0.10K
Reported by: Other Federal Agency

Runoff from prolonged heavy rainfall in Dundy County caused the Republican River to surpass flood stage in the western part of Hitchcock County, from the county line to Stratton.  The flood waters did not cause any damage to buildings, roads, or bridges along the river channel.  In addition, the river stage at Stratton was just under 11 feet, which is just below the record stage for the site.

Flash Flood in DUNDY, NEBRASKA
From 23-JUL-20 18:45:00 to 23-JUL-20 21:45:00 (MST-7)
Location: SANBORN
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Public

Multiple roads across the flooded part of the county were washed out.  Notable road closures include Highway 34 closed from Benkelman to Highway 385 at Wray, River Road closed from Parks to Doane, and Avenue 328 closed due to four feet of water over the road.  The flood waters also washed out part of the railroad between Parks and Haigler, stranding the train in Haigler.  The Republican River at Benkelman reached a peak height of almost nine and a half feet.  The record stage height is just over 13 feet.
Total damage for this event (both flash flood and flood) totaled between $100,000 and $108,000.

Flood in DUNDY, NEBRASKA
From 23-JUL-20 21:45:00 to 25-JUL-20 08:00:00 (MST-7)
Location: PARKS
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Public

Multiple roads across the flooded part of the county were washed out. Notable road closures include Highway 34 closed from Benkelman to Highway 385 at Wray, River Road closed from Parks to Doane, and Avenue 328 closed due to four feet of water over the road. The flood waters also washed out part of the railroad between Parks and Haigler, stranding the train in Haigler.  The Republican River at Benkelman reached a peak height of almost nine and a half feet. The record stage height is just over 13 feet.
Total damage for this event (both flash flood and flood) totaled between $100,000 and $108,000.