As a cold front moved into northeast Nebraska during the day on August 23rd, warm and moist air returned northward into the area along a warm front. As temperatures increased into the mid and upper 80s along and south of the warm front, thunderstorms began to develop by late afternoon. These thunderstorms continued to increase in coverage and intensity during the evening. Favorable shear along the warm front allowed for some of the storms to form into supercells and produce severe weather. Late in the evening the thunderstorms formed into a complex and moved southeast across eastern Nebraska and southwest Iowa with severe weather and heavy rainfall occurring.

Hail in WASHINGTON, NEBRASKA
From 23-AUG-16 18:30:00 to 23-AUG-16 18:30:00 (CST-6)
Location: WASHINGTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm Wind in DOUGLAS, NEBRASKA
From 23-AUG-16 18:20:00 to 23-AUG-16 18:20:00 (CST-6)
Location: BENNINGTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Large tree limbs, 4 to 6 inch in diameter, blown down along Highway 36.

Hail in WASHINGTON, NEBRASKA
From 23-AUG-16 19:32:00 to 23-AUG-16 19:32:00 (CST-6)
Location: DE SOTO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in DODGE, NEBRASKA
From 23-AUG-16 20:07:00 to 23-AUG-16 20:13:00 (CST-6)
Location: FREMONT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A downburst appeared to have occurred in the city of Fremont. The primary damage centered from midtown to the southeast side of town. In this area significant tree damage occurred including large branches downed and some uprooted. Power line and pole damage was also noted.

Thunderstorm Wind in DOUGLAS, NEBRASKA
From 23-AUG-16 20:42:00 to 23-AUG-16 20:59:00 (CST-6)
Location: CLEARIDGE
Magnitude: 83.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A series of downbursts occurred across northwest and northeast Omaha. The majority of the damage was centered Sorensen Parkway where significant tree, power line and pole damage was observed. Large tree limbs were blown down and some trees were uprooted. Some damage did occur at Eppley Airfield where small planes were moved or flipped. This closed the airport for some time after the storms passed. A maximum wind gust of 96 mph was recorded at the airport.

Tornado in WASHINGTON, NEBRASKA
From 23-AUG-16 18:58:00 to 23-AUG-16 18:59:00 (CST-6)
Location: WASHINGTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A second brief touchdown was observed from the same supercell that produced the earlier tornado. This brief touchdown occurred just to the northeast of the previous touchdown. No damage was observed in the area.

Hail in DOUGLAS, NEBRASKA
From 23-AUG-16 17:30:00 to 23-AUG-16 17:30:00 (CST-6)
Location: IRVINGTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Tornado in WASHINGTON, NEBRASKA
From 23-AUG-16 18:35:00 to 23-AUG-16 18:36:00 (CST-6)
Location: WASHINGTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A rapidly rotating wall cloud was observed to the north northeast of the town of Washington. The wall cloud produced a funnel that briefly had a condensation to the surface with a dust debris cloud present. No damage was observed in the area from the tornado.

Flash Flood in WASHINGTON, NEBRASKA
From 23-AUG-16 20:40:00 to 23-AUG-16 22:30:00 (CST-6)
Location: BLAIR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Very heavy rainfall from a nearly stationary thunderstorm produced amounts of 5 to 7 inches in the area. This led to flash flooding, which closed State Highway 133 and U.S. Highway 30 near Blair, NE. County roads P29 and P26 were also closed due to flooding.

Flash Flood in DOUGLAS, NEBRASKA
From 23-AUG-16 21:47:00 to 24-AUG-16 01:00:00 (CST-6)
Location: OMAHA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Several reports of flash flooding from high rainfall rates were received from the media and on social media. The main area of flooding was centered around Saddle Creek in central Omaha, but there were also reports along L street in southwest Omaha as well. The street flooding led to several cars becoming stranded.