Scattered thunderstorms, including a few supercell/tornado producing storms, developed ahead of and along a cold front that pressed into eastern Nebraska during the afternoon and evening of May 27th.  Temperatures ahead of the front climbed into the upper 80s to lower 90s.  So even though dew point temperatures were in the 50s and lower 60s, not especially high for the season, the high temperatures, an upper level disturbance driving the front east, and deeper mid level moisture all contributed to the strength of the storms this evening.  The storms also produced pockets of very heavy rainfall as they tracked repeatedly across some locations.

Hail in ANTELOPE, NEBRASKA
From 27-MAY-12 16:00:00 to 27-MAY-12 16:09:00 (CST-6)
Location: ELGIN
Magnitude: 1.75 
Reported by: COOP Observer

Hail up to golf ball-size fell in and near the Elgin area.  The wind driven hail broke windows and damaged siding in the area, and also caused vehicle and tree damage.  Crops in the region were also heavily damaged.  This storm also produced a tornado south of the region.

Hail in PIERCE, NEBRASKA
From 27-MAY-12 16:37:00 to 27-MAY-12 16:39:00 (CST-6)
Location: PIERCE
Magnitude: 2.75 
Reported by: COOP Observer

Hail up to baseball-size fell from the Willow Creek State Recreation area into Pierce.  Several campers and vehicles were damaged.

Thunderstorm Wind in CEDAR, NEBRASKA
From 27-MAY-12 17:09:00 to 27-MAY-12 17:14:00 (CST-6)
Location: COLERIDGE
Magnitude: 55.00 EG
Reported by: Newspaper

Thunderstorm wind gusts estimated at over 60 mph flipped several center irrigation pivots and snapped some highline power poles in the Coleridge area according to the Coleridge Blade newspaper.  Time was estimated from radar.

Tornado in MADISON, NEBRASKA
From 27-MAY-12 17:30:00 to 27-MAY-12 17:32:00 (CST-6)
Location: MADISON
Tornado F-scale: EF0
Reported by: Fire Department/Rescue

A tornado was on the ground for a few minutes near Highways 121 and 32.  The tornado was caught on video by a storm chaser.

Hail in CEDAR, NEBRASKA
From 27-MAY-12 17:09:00 to 27-MAY-12 17:09:00 (CST-6)
Location: COLERIDGE
Magnitude: 2.75 
Reported by: Newspaper

Hail up to baseball-size fell west of Coleridge.  The hail damaged roofs and crops in the region.  Time was estimated from radar.

Hail in MADISON, NEBRASKA
From 27-MAY-12 17:24:00 to 27-MAY-12 17:30:00 (CST-6)
Location: TILDEN
Magnitude: 1.25 
Reported by: Newspaper

Hail, the largest estimated to be around half dollar-size, caused crop damage in a path from south of Tilden to a little south of Meadow Grove.  The hail was from the same supercell thunderstorm that produced a tornado a little southeast of the region.  Time was estimated from radar.

Hail in SEWARD, NEBRASKA
From 27-MAY-12 17:17:00 to 27-MAY-12 17:17:00 (CST-6)
Location: FLYING V ARPT
Magnitude: 1.75 
Reported by: Law Enforcement

Golf ball-size hail was reported along I80 near mile marker 366 south of Utica.

Thunderstorm Wind in SEWARD, NEBRASKA
From 27-MAY-12 17:23:00 to 27-MAY-12 17:23:00 (CST-6)
Location: GOEHNER
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm wind gusts estimated at around 60 mph took the roof off of an outbuilding near Goehner.  The time was estimated from radar.

Flash Flood in PLATTE, NEBRASKA
From 27-MAY-12 20:46:00 to 27-MAY-12 22:46:00 (CST-6)
Location: COLUMBUS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain of 2.5 to 3 inches in one to two hours caused flash flooding across several streets in the Columbus area.  The more significant flooding was across the north part of town where at least one street had several feet of water across it which caused at least 3 cars to stall when they attempted to drive through the flood waters.

Flash Flood in STANTON, NEBRASKA
From 27-MAY-12 20:22:00 to 27-MAY-12 22:22:00 (CST-6)
Location: STANTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Rainfall of nearly 3 inches in an hour or two caused flash flooding across a few streets in the Stanton area.

Hail in BOONE, NEBRASKA
From 27-MAY-12 16:48:00 to 27-MAY-12 16:48:00 (CST-6)
Location: PRIMROSE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in CEDAR, NEBRASKA
From 27-MAY-12 17:21:00 to 27-MAY-12 17:21:00 (CST-6)
Location: HARTINGTON MUNI ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WAYNE, NEBRASKA
From 27-MAY-12 15:57:00 to 27-MAY-12 15:57:00 (CST-6)
Location: WINSIDE
Magnitude: 1.75 
Reported by: COOP Observer

Hail around golf ball-size was reported by the cooperative observer west of Wayne.

Hail in BOONE, NEBRASKA
From 27-MAY-12 17:35:00 to 27-MAY-12 17:39:00 (CST-6)
Location: ALBION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dime to quarter-size hail fell in the Albion area.

Hail in BUTLER, NEBRASKA
From 27-MAY-12 17:52:00 to 27-MAY-12 17:54:00 (CST-6)
Location: DAVID CITY
Magnitude: 1.75 
Reported by: Emergency Manager

Hail up to golf ball-size but mostly 1 to 1.5 inches in diameter fell in the David City area.  The hail was accompanied by winds that were estimated at 60 mph.

Hail in SEWARD, NEBRASKA
From 27-MAY-12 18:25:00 to 27-MAY-12 18:25:00 (CST-6)
Location: KRUTZ ARPT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SAUNDERS, NEBRASKA
From 27-MAY-12 18:35:00 to 27-MAY-12 18:35:00 (CST-6)
Location: WAHOO
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A thunderstorm wind gust of 58 mph was measured at the Wahoo airport.

Hail in PLATTE, NEBRASKA
From 27-MAY-12 19:20:00 to 27-MAY-12 19:20:00 (CST-6)
Location: TARNOV
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in BUTLER, NEBRASKA
From 27-MAY-12 17:52:00 to 27-MAY-12 17:52:00 (CST-6)
Location: DAVID CITY
Magnitude: 52.00 EG
Reported by: NWS Employee

Thunderstorm wind gusts estimated at 60 mph flipped a trampoline several times and caused some minor tree damage in the David City area.  The winds were accompanied by a few hailstones up to golf ball-size.

Flash Flood in STANTON, NEBRASKA
From 27-MAY-12 20:22:00 to 27-MAY-12 22:22:00 (CST-6)
Location: PILGER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Rainfall of nearly 3 inches in an hour or two caused flash flooding across a few streets in Pilger.

Hail in ANTELOPE, NEBRASKA
From 27-MAY-12 16:12:00 to 27-MAY-12 16:17:00 (CST-6)
Location: ELGIN
Magnitude: 2.50 
Reported by: COOP Observer

Hail up to baseball-size smashed car and house windows and caused siding and roof damage as well.  Winds with the thunderstorm also downed a tree east of town.

Hail in ANTELOPE, NEBRASKA
From 27-MAY-12 16:25:00 to 27-MAY-12 16:30:00 (CST-6)
Location: OAKDALE
Magnitude: 2.50 
Reported by: Emergency Manager

Most of the hail was around golf ball-size, but a few were around tennis ball-size.  The hail broke car and building windows and caused other siding and roof damage in the area.

Flash Flood in ANTELOPE, NEBRASKA
From 27-MAY-12 16:42:00 to 27-MAY-12 20:42:00 (CST-6)
Location: ELGIN
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Rainfall of over 4 inches fell in a few hours in the Elgin area.  The heavy rain caused flash flooding over a few roads and at least one bridge east of Elgin.

Hail in BUTLER, NEBRASKA
From 27-MAY-12 17:45:00 to 27-MAY-12 17:45:00 (CST-6)
Location: ULYSSES
Magnitude: 2.50 
Reported by: Public

A few hail stones around tennis ball-size fell in the Ulysses area.

Hail in MADISON, NEBRASKA
From 27-MAY-12 17:30:00 to 27-MAY-12 17:34:00 (CST-6)
Location: NEWMAN GROVE
Magnitude: 1.25 
Reported by: Newspaper

Hail, most of it estimated to be half dollar size or smaller, caused areas of crop damage southwest of Battle Creek.  The hail was from the same supercell thunderstorm that produced a tornado near or a little south of the region.  Time of damage was estimated by radar.

Tornado in BOONE, NEBRASKA
From 27-MAY-12 16:06:00 to 27-MAY-12 16:08:00 (CST-6)
Location: CLOSTER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A brief tornado was reported south and east of Elgin by law enforcement.  The tornado caused no apparent damage.

Tornado in BOONE, NEBRASKA
From 27-MAY-12 17:05:00 to 27-MAY-12 17:08:00 (CST-6)
Location: CLOSTER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tornado briefly touched down in an open field south of Highway 32 northeast of Albion.  The tornado caused no apparent damage.

Thunderstorm Wind in MADISON, NEBRASKA
From 27-MAY-12 17:58:00 to 27-MAY-12 18:03:00 (CST-6)
Location: NEWMAN GROVE
Magnitude: 55.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm wind gusts estimated at over 60 mph destroyed a silo and part of a cattle barn on one farmstead about 8 miles west of Madison and a center pivot system was overturned in that area. A machine shed sustained heavy damage around 9 miles west of Madison.

Hail in CEDAR, NEBRASKA
From 27-MAY-12 17:25:00 to 27-MAY-12 17:25:00 (CST-6)
Location: COLERIDGE
Magnitude: 4.50 
Reported by: Newspaper

Hail up to softball-size was reported east of Coleridge from the second of 2 supercell thunderstorms that tracked near town.  The hail damaged roofs and crops in the region.  Time was estimated from radar.

Hail in PIERCE, NEBRASKA
From 27-MAY-12 16:57:00 to 27-MAY-12 16:57:00 (CST-6)
Location: MC LEAN
Magnitude: 2.75 
Reported by: Law Enforcement

Hail around baseball-size was reported west of Randolph.

Flash Flood in WAYNE, NEBRASKA
From 27-MAY-12 19:57:00 to 27-MAY-12 21:30:00 (CST-6)
Location: WAYNE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rainfall of 2 to 3 inches in an hour or two caused flood waters to flow from corn fields across a few county roads northwest of Wayne.  Damage was apparently minimal.