A line of thunderstorms, some severe, developed near the Kansas and Nebraska border south of Beatrice during the early afternoon of May 11th.  Temperatures in the 80s and dew point temperatures in the mid/upper 60s from southeast Nebraska into easterly Kansas created moderately unstable conditions as a large upper level low pressure system organized over Colorado.  Due to the circulation of the upper system, the storms lifted north across eastern Nebraska and produced areas of damaging winds and several large hail reports.  With a boundary bisecting east central Nebraska and western Iowa a few tornadoes also spun-up just west and east of the region.

Hail in GAGE, NEBRASKA
From 11-MAY-11 12:21:00 to 11-MAY-11 12:21:00 (CST-6)
Location: ADAMS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported pea to quarter-size hail in the Adams area.

Thunderstorm Wind in GAGE, NEBRASKA
From 11-MAY-11 12:32:00 to 11-MAY-11 12:32:00 (CST-6)
Location: BLUE SPGS
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported thunderstorm wind gusts broke tree branches in the Wymore area.  The winds were estimated at 60 mph and were accompanied by 1 inch hail.

Thunderstorm Wind in GAGE, NEBRASKA
From 11-MAY-11 12:55:00 to 11-MAY-11 12:55:00 (CST-6)
Location: FILLEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated thunderstorm winds reached around 60 mph.

Thunderstorm Wind in GAGE, NEBRASKA
From 11-MAY-11 13:14:00 to 11-MAY-11 13:14:00 (CST-6)
Location: ADAMS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts estimated at 60 mph downed a few 2 to 3 inch in diameter tree limbs in the area.  The winds were accompanied by hail up to quarter-size.

Hail in GAGE, NEBRASKA
From 11-MAY-11 13:14:00 to 11-MAY-11 13:14:00 (CST-6)
Location: ADAMS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A second area of severe thunderstorms produced pea to quarter-size hail in the Adams area within an hour.

Thunderstorm Wind in CUMING, NEBRASKA
From 11-MAY-11 15:20:00 to 11-MAY-11 15:20:00 (CST-6)
Location: WEST PT
Magnitude: 55.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm wind gusts estimated at over 60 mph toppled a tree which crushed the rear of a pickup truck just west of West Point.

Thunderstorm Wind in JOHNSON, NEBRASKA
From 11-MAY-11 13:14:00 to 11-MAY-11 13:14:00 (CST-6)
Location: STERLING
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated at close to 60 mph.  The winds were accompanied by hail that was a little under 3/4 inch in diameter.

Thunderstorm Wind in SARPY, NEBRASKA
From 11-MAY-11 14:11:00 to 11-MAY-11 14:11:00 (CST-6)
Location: SPRINGFIELD
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser estimated thunderstorm wind gusts of around 60 mph.  The winds were accompanied by hail up to 1 inch in diameter.

Thunderstorm Wind in PLATTE, NEBRASKA
From 11-MAY-11 14:33:00 to 11-MAY-11 14:33:00 (CST-6)
Location: MONROE
Magnitude: 55.00 EG
Crop damage: 0.00K
Reported by: County Official

Thunderstorm wind gusts estimated at over 60 mph caused tree damage in the Monroe area.

Thunderstorm Wind in BUTLER, NEBRASKA
From 11-MAY-11 14:20:00 to 11-MAY-11 14:20:00 (CST-6)
Location: DAVID CITY
Magnitude: 55.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts estimated at over 60 mph downed a tree on 10th Street that just missed a mailman's Jeep.

Thunderstorm Wind in PLATTE, NEBRASKA
From 11-MAY-11 14:40:00 to 11-MAY-11 14:40:00 (CST-6)
Location: (OLU)COLUMBUS ARPT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated thunderstorm wind gusts approached 65 mph on the east side of Columbus.

Thunderstorm Wind in PLATTE, NEBRASKA
From 11-MAY-11 14:42:00 to 11-MAY-11 14:42:00 (CST-6)
Location: CORNLEA
Magnitude: 60.00 EG
Crop damage: 0.00K
Reported by: County Official

Thunderstorm wind gusts that were estimated at around 70 mph destroyed a pole barn and severe damaged other outbuildings and grain bins north of Monroe.

Thunderstorm Wind in DODGE, NEBRASKA
From 11-MAY-11 14:44:00 to 11-MAY-11 14:44:00 (CST-6)
Location: AMES
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated thunderstorm wind gusts reached 70 mph east of North Bend.  The winds were accompanied by 1 inch hail.

Thunderstorm Wind in BOONE, NEBRASKA
From 11-MAY-11 14:48:00 to 11-MAY-11 14:48:00 (CST-6)
Location: PRIMROSE
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement estimated thunderstorm wind gusts approached 70 mph in the Primrose area.

Thunderstorm Wind in PLATTE, NEBRASKA
From 11-MAY-11 15:03:00 to 11-MAY-11 15:03:00 (CST-6)
Location: HUMPHREY
Magnitude: 55.00 EG
Crop damage: 0.00K
Reported by: County Official

Thunderstorm wind gusts estimated at over 60 mph caused grain bin damage in the Humphrey area.

Hail in COLFAX, NEBRASKA
From 11-MAY-11 15:10:00 to 11-MAY-11 15:10:00 (CST-6)
Location: HOWELLS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DODGE, NEBRASKA
From 11-MAY-11 15:10:00 to 11-MAY-11 15:10:00 (CST-6)
Location: SCRIBNER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated thunderstorm wind gusts were around 60 mph.

Thunderstorm Wind in STANTON, NEBRASKA
From 11-MAY-11 15:22:00 to 11-MAY-11 15:22:00 (CST-6)
Location: STANTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorm wind gusts estimated at 60 mph reportedly picked up and moved a mini van northwest of Stanton.

Thunderstorm Wind in THURSTON, NEBRASKA
From 11-MAY-11 15:55:00 to 11-MAY-11 15:55:00 (CST-6)
Location: EMERSON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated that thunderstorm wind gusts approached 60 mph near Emerson.

Hail in DODGE, NEBRASKA
From 11-MAY-11 14:45:00 to 11-MAY-11 14:45:00 (CST-6)
Location: NORTH BEND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The hail was accompanied by thunderstorm wind gusts estimated at 70 mph.

Hail in GAGE, NEBRASKA
From 11-MAY-11 12:32:00 to 11-MAY-11 12:32:00 (CST-6)
Location: WYMORE
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

The hail was accompanied by thunderstorm wind gusts estimated at 60 mph.

Hail in SARPY, NEBRASKA
From 11-MAY-11 14:11:00 to 11-MAY-11 14:11:00 (CST-6)
Location: SPRINGFIELD
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Storm Chaser

The hail was accompanied by thunderstorm wind gusts estimated at 60 mph.

Thunderstorm Wind in PLATTE, NEBRASKA
From 11-MAY-11 14:45:00 to 11-MAY-11 14:47:00 (CST-6)
Location: TARNOV
Magnitude: 65.00 EG
Crop damage: 0.00K
Reported by: County Official

Thunderstorm wind gusts estimated at over 70 mph damaged or destroyed farm outbuildings and overturned numerous center pivots near Tarnov.  Trees were toppled in the area as well.

Thunderstorm Wind in JEFFERSON, NEBRASKA
From 11-MAY-11 12:55:00 to 11-MAY-11 12:55:00 (CST-6)
Location: PLYMOUTH
Magnitude: 69.00 MG
Crop damage: 0.00K
Reported by: Public

Home weather equipment measured a thunderstorm wind gust of 78 mph a few miles northeast of Plymouth.  The winds knocked down a few tree branches in the area.

Hail in SALINE, NEBRASKA
From 11-MAY-11 13:10:00 to 11-MAY-11 13:13:00 (CST-6)
Location: WILBER
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Emergency Manager

The hail lasted several minutes and just followed thunderstorm wind gusts that were estimated at around 70 mph.

Thunderstorm Wind in SALINE, NEBRASKA
From 11-MAY-11 13:04:00 to 11-MAY-11 13:04:00 (CST-6)
Location: WILBER
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter in the Wilber area estimated that thunderstorm wind gusts approached 70 mph.  The winds were accompanied by nickel-size hail.