A warm front and low pressure system over northern Kansas lifted northeast into southeast Nebraska and southwest Iowa as an unseasonably strong upper level low pressure system lifted from the Rockies into the northern plains.  The front and upper level disturbance caused fast moving thunderstorms, a few severe, to develop during the late morning hours in northeast Nebraska.  After a brief lull in the activity through early afternoon, additional thunderstorms developed over eastern Nebraska.  The storms developed along 2 lines, one extended north of Columbus while the other stretched from southeast Nebraska into southwest Iowa. Several of the storms turned severe, including one supercell that produced an EF2 tornado in extreme southeast Nebraska.  Besides the severe weather, a few of the thunderstorms produced additional areas of heavy rain that fell on saturated soils and caused some already high rivers to flood.

Thunderstorm Wind in NEMAHA, NEBRASKA
From 05-JUN-08 17:35:00 to 05-JUN-08 17:40:00 (CST-6)
Location: BROCK
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm wind gusts estimated at 60 to 70 mph caused scattered farm outbuilding damage from near Johnson to near Brock.  Power lines were also downed from the storm along Highway 67 which caused its closure and knocked power out in Brock.  The winds were from the supercell thunderstorm that produced 3 tornadoes southwest of Johnson.

Hail in GAGE, NEBRASKA
From 05-JUN-08 16:55:00 to 05-JUN-08 16:55:00 (CST-6)
Location: LIBERTY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in NEMAHA, NEBRASKA
From 05-JUN-08 17:23:00 to 05-JUN-08 17:32:00 (CST-6)
Location: JOHNSON
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A supercell thunderstorm caused cyclic tornadic activity southwest of Johnson.  As one tornado to the west was dissipating this one formed.  Eyewitnesses stated they saw both tornadoes on the ground at the same time for a while.  This tornado caused damage to several farmsteads southwest of Johnson.  A barn was blown down at one farmstead and other farm outbuildings and trees sustained major damage along its track.  Two houses also had some roof damage.  This supercell thunderstorm then spun up a third tornado a mile southwest of Johnson after this tornado had lifted or dissipated.

Tornado in NEMAHA, NEBRASKA
From 05-JUN-08 17:35:00 to 05-JUN-08 17:37:00 (CST-6)
Location: JOHNSON
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado destroyed caused tree and outbuilding damage to a farmstead about a mile southwest of Johnson.  This was the 3rd tornado that formed from this supercell thunderstorm that tracked across the county. Even though the tornado lifted before it hit Johnson, wind from the storm knocked down power lines from near Johnson to Brock, which is several miles northeast of Johnson.  The downed power lines caused the town of Brock to lose power.

Flood in SEWARD, NEBRASKA
From 05-JUN-08 21:30:00 to 12-JUN-08 06:30:00 (CST-6)
Location: KRUTZ ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rain from thunderstorms on June 4th and 5th caused Lincoln Creek to flood across Seward county from west of Staplehurst to its confluence with the Big Blue River near Seward.  The flooding was prolonged by additional heavy rain producing thunderstorms on June 7th, 8th and 11th.  The creek at Seward reached a 17.7 foot crest around 2am CDT on June 7th and a 17.5 foot crest around 7am CDT on the 9th.  Flood stage is 15 feet.  The flooding closed several county roads, especially near its confluence with the Big Blue River which was also in flood or running quite high.  Agricultural lowlands were also flooded.  Flooding along Lincoln Creek started late in the Day on June 6th and lasted until the morning hours of June 12th.

Flood in KNOX, NEBRASKA
From 06-JUN-08 03:15:00 to 07-JUN-08 17:15:00 (CST-6)
Location: VERDEL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Heavy rain fell across the Ponca Creek basin on Wednesday June 4, with an additional 2 to 4 inches reported across the upper sections of the basin on Thursday June 5.  The rain caused Ponca Creek to flood along Highway 12 in the Verdel area on Friday and Saturday June 6 and 7th.  Farm fields and county roads in the area were also flooded.

Thunderstorm Wind in CEDAR, NEBRASKA
From 05-JUN-08 18:32:00 to 05-JUN-08 18:32:00 (CST-6)
Location: RANDOLPH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flood in CASS, NEBRASKA
From 06-JUN-08 09:15:00 to 06-JUN-08 18:30:00 (CST-6)
Location: LOUISVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Additional heavy rain producing thunderstorm fell across parts of the Platte River basin on June 4th and 5th.  This caused the already high Platte River to briefly go over its banks around the Louisville area from late morning until early evening on June 6th.  The river at Louisville crested around 9.2 feet at 345 pm on June 6th, flood stage is 9 feet.  The flooding affected mainly just agricultural lowlands.

Thunderstorm Wind in KNOX, NEBRASKA
From 05-JUN-08 17:41:00 to 05-JUN-08 17:41:00 (CST-6)
Location: VENUS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds estimated at 70 mph downed trees and blew windows out of a house west of Creighton.

Tornado in RICHARDSON, NEBRASKA
From 05-JUN-08 18:39:00 to 05-JUN-08 18:49:00 (CST-6)
Location: (FNB)BRENER FLD FALL
Tornado F-scale: EF2
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

This tornado started approximately 4 miles east of Falls City and traveled north northeast.  Soon after the initial touchdown there was damage to the roof of a home and a church.  The tornado then produced tree damage before blowing the roof off of a home and destroying several sheds and barns at another farmstead.  Other tree, house, outbuilding and power pole damage was observed along its path before it crossed the Missouri River into Holt county Missouri.  The damage path reached a half mile wide where high tension power poles were snapped northeast of Falls City.

Hail in ANTELOPE, NEBRASKA
From 05-JUN-08 17:26:00 to 05-JUN-08 17:26:00 (CST-6)
Location: CLEARWATER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in CEDAR, NEBRASKA
From 05-JUN-08 11:33:00 to 05-JUN-08 11:33:00 (CST-6)
Location: COLERIDGE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in ANTELOPE, NEBRASKA
From 05-JUN-08 17:20:00 to 05-JUN-08 17:20:00 (CST-6)
Location: ORCHARD
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm wind gusts estimated at 70 mph uprooted a few trees and broke windows out of a house on a farmstead northeast of Orchard.

Hail in ANTELOPE, NEBRASKA
From 05-JUN-08 10:30:00 to 05-JUN-08 10:30:00 (CST-6)
Location: OAKDALE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in RICHARDSON, NEBRASKA
From 05-JUN-08 17:48:00 to 05-JUN-08 17:48:00 (CST-6)
Location: SHUBERT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in NEMAHA, NEBRASKA
From 05-JUN-08 17:20:00 to 05-JUN-08 17:24:00 (CST-6)
Location: JOHNSON
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A supercell thunderstorm caused cyclic tornadic activity southwest of Johnson.  This tornado caused tree and farm outbuilding damage along its path.  As this tornado was dissipating, another one formed to the east.  Eyewitnesses stated they saw both tornadoes on the ground at the same time for a while.  The supercell thunderstorm then spun up a third tornado a mile southwest of Johnson.

Hail in PIERCE, NEBRASKA
From 05-JUN-08 10:30:00 to 05-JUN-08 10:30:00 (CST-6)
Location: PIERCE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in PIERCE, NEBRASKA
From 05-JUN-08 10:49:00 to 05-JUN-08 10:49:00 (CST-6)
Location: PIERCE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in PIERCE, NEBRASKA
From 05-JUN-08 11:04:00 to 05-JUN-08 11:04:00 (CST-6)
Location: HADAR
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail that approached golfball-size fell between Pierce and Hadar.  The hail damaged crops and vehicles in the area.

Tornado in RICHARDSON, NEBRASKA
From 05-JUN-08 18:33:00 to 05-JUN-08 18:35:00 (CST-6)
Location: PRESTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A brief tornado caused scattered tree and farm outbuilding damage southeast of Falls City.  Another tornado, stronger and longer lived, formed several miles to the north of this one from the same supercell thunderstorm.

Hail in KNOX, NEBRASKA
From 05-JUN-08 17:52:00 to 05-JUN-08 17:52:00 (CST-6)
Location: CENTER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement