An upper-level low tracked from the northern Rockies into the mid Missouri Valley in tandem with a surface low that developed slowly east across Nebraska. Multiple waves of thunderstorms moved through eastern Nebraska during the 24th and 25th with isolated occurrences of damaging winds and severe hail, along with heavy rain that resulted in areas of flooding. Hardest hit were Cuming and Platte Counties where rainfall totals of 6.0 to 6.5 were reported.

Thunderstorm Wind in LANCASTER, NEBRASKA
From 25-JUN-18 17:40:00 to 25-JUN-18 17:40:00 (CST-6)
Location: LINCOLN
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree branches broken by damaging winds near 35th and Vine Streets in Lincoln.

Thunderstorm Wind in SARPY, NEBRASKA
From 24-JUN-18 17:00:00 to 24-JUN-18 17:00:00 (CST-6)
Location: CHALCO
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging thunderstorm winds uprooted tress and broke large tree limbs 2 miles east southeast of Chalco.

Flash Flood in CUMING, NEBRASKA
From 24-JUN-18 21:30:00 to 25-JUN-18 06:30:00 (CST-6)
Location: BEEMER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were closed across Cuming County starting on the evening of the 24th and continuing early morning on the 25th.  6 to 6 1/2 inches of rain fell over parts of Cuming County that caused flash flooding.

Thunderstorm Wind in LANCASTER, NEBRASKA
From 25-JUN-18 17:20:00 to 25-JUN-18 17:20:00 (CST-6)
Location: UNIVERSITY PLACE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down on 58th and R streets in Lincoln.

Flood in PLATTE, NEBRASKA
From 25-JUN-18 15:00:00 to 25-JUN-18 18:00:00 (CST-6)
Location: CRESTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Heavy rainfall of 4 to 6 1/2 inches caused the fork of Loseke Creek to go over its banks in Platte County.

Hail in PIERCE, NEBRASKA
From 24-JUN-18 15:56:00 to 24-JUN-18 15:56:00 (CST-6)
Location: HADAR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

People reported a large quantity of haii ranging from penny size to quarter size 1 mile northwest of Hadar.

Hail in DODGE, NEBRASKA
From 24-JUN-18 18:05:00 to 24-JUN-18 18:05:00 (CST-6)
Location: WEBSTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in THURSTON, NEBRASKA
From 24-JUN-18 19:08:00 to 24-JUN-18 19:08:00 (CST-6)
Location: MACY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree limbs were blown down.

Thunderstorm Wind in LANCASTER, NEBRASKA
From 25-JUN-18 17:20:00 to 25-JUN-18 17:20:00 (CST-6)
Location: HANLON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tree was uprooted by damaging winds near Roca.

Flash Flood in PLATTE, NEBRASKA
From 24-JUN-18 21:00:00 to 25-JUN-18 07:00:00 (CST-6)
Location: PLATTE CENTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rainfall of 4 to 6 1/2 inches caused flash flooding in parts of Platte County.  Flooding in Platte Center and nearby areas required sandbagging to occur to reduce the effects of flooding.  Flooding started on the evening of the 24th and continued into the morning of the 25th.

Flash Flood in THURSTON, NEBRASKA
From 25-JUN-18 15:35:00 to 25-JUN-18 21:00:00 (CST-6)
Location: PENDER MUNI ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms producing 4 to 5 inch rainfall across Thurston County caused flash flooding near Pender.  Nebraska highways 94, 9, and 16 were all under water.

Flash Flood in WAYNE, NEBRASKA
From 25-JUN-18 12:00:00 to 25-JUN-18 18:00:00 (CST-6)
Location: WAKEFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

More than 5 inches of heavy rain from thunderstorms caused significant rises of water out of creeks into cornfields.

Flood in PLATTE, NEBRASKA
From 25-JUN-18 07:00:00 to 25-JUN-18 13:00:00 (CST-6)
Location: PLATTE CENTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Highway 81 was closed due to flooding of Shell Creek from 4 to 6 1/2 inch rainfall.

Flood in PLATTE, NEBRASKA
From 25-JUN-18 12:00:00 to 25-JUN-18 17:00:00 (CST-6)
Location: OCONEE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy rainfall caused water to go over the road at Nebraska Highway 22 and 280th Avenue east of Oconee.

Thunderstorm Wind in LANCASTER, NEBRASKA
From 25-JUN-18 17:22:00 to 25-JUN-18 17:22:00 (CST-6)
Location: UNIVERSITY PLACE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large tree was uprooted in northeast Lincoln.