Severe thunderstorms produced very large hail, from quarter to tennis ball size, and strong winds across the northeast plains of Colorado.  The largest hail was observed in Adams, Logan, Phillips and Sedgwick Counties.  A brief tornado touchdown was reported in Sedgwick County.  In addition, a horse trailer and some outbuildings were damaged by hail and strong winds between Julesburg and Ovid. In Phillips County, severe thunderstorms stripped wheat, tore up corn, overturned center pivots, totaled grain bins and broke the windows of numerous home and vehicles.

Hail in PHILLIPS, COLORADO
From 19-JUN-11 17:56:00 to 19-JUN-11 17:56:00 (MST-7)
Location: HAXTUN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PHILLIPS, COLORADO
From 19-JUN-11 17:47:00 to 19-JUN-11 17:47:00 (MST-7)
Location: HAXTUN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LOGAN, COLORADO
From 19-JUN-11 18:06:00 to 19-JUN-11 18:06:00 (MST-7)
Location: PADRONI
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in PHILLIPS, COLORADO
From 19-JUN-11 18:19:00 to 19-JUN-11 18:19:00 (MST-7)
Location: PAOLI
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in PHILLIPS, COLORADO
From 19-JUN-11 18:34:00 to 19-JUN-11 18:34:00 (MST-7)
Location: AMHERST
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WASHINGTON, COLORADO
From 19-JUN-11 18:57:00 to 19-JUN-11 18:57:00 (MST-7)
Location: OTIS STANSFIELD ARPT
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in ADAMS, COLORADO
From 19-JUN-11 19:07:00 to 19-JUN-11 19:07:00 (MST-7)
Location: BENNETT
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in WELD, COLORADO
From 19-JUN-11 19:04:00 to 19-JUN-11 19:04:00 (MST-7)
Location: ROGGEN
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in DENVER, COLORADO
From 19-JUN-11 19:05:00 to 19-JUN-11 19:05:00 (MST-7)
Location: SOUTH DENVER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MORGAN, COLORADO
From 19-JUN-11 20:54:00 to 19-JUN-11 20:54:00 (MST-7)
Location: LODI
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in LOGAN, COLORADO
From 19-JUN-11 16:28:00 to 19-JUN-11 16:28:00 (MST-7)
Location: CROOK
Magnitude: 2.50 
Reported by: Trained Spotter

Thunderstorm Wind in LOGAN, COLORADO
From 19-JUN-11 18:05:00 to 19-JUN-11 18:05:00 (MST-7)
Location: FLEMING
Magnitude: 61.00 MG
Reported by: Trained Spotter

Thunderstorm Wind in WASHINGTON, COLORADO
From 19-JUN-11 21:12:00 to 19-JUN-11 21:12:00 (MST-7)
Location: AKRON GEBAUER ARPT
Magnitude: 50.00 MG
Reported by: Trained Spotter

Hail in PHILLIPS, COLORADO
From 19-JUN-11 17:30:00 to 19-JUN-11 17:30:00 (MST-7)
Location: AMHERST
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in LOGAN, COLORADO
From 19-JUN-11 15:39:00 to 19-JUN-11 15:39:00 (MST-7)
Location: PEETZ
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in LOGAN, COLORADO
From 19-JUN-11 16:15:00 to 19-JUN-11 16:15:00 (MST-7)
Location: CROOK
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in LOGAN, COLORADO
From 19-JUN-11 16:23:00 to 19-JUN-11 16:23:00 (MST-7)
Location: CROOK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LOGAN, COLORADO
From 19-JUN-11 16:38:00 to 19-JUN-11 16:38:00 (MST-7)
Location: RED LION
Magnitude: 1.25 
Reported by: Storm Chaser

Tornado in SEDGWICK, COLORADO
From 19-JUN-11 16:59:00 to 19-JUN-11 17:01:00 (MST-7)
Location: SEDGWICK
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A tornado touched down briefly but did no damage.

Hail in SEDGWICK, COLORADO
From 19-JUN-11 17:08:00 to 19-JUN-11 17:08:00 (MST-7)
Location: OVID
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in SEDGWICK, COLORADO
From 19-JUN-11 17:20:00 to 19-JUN-11 17:20:00 (MST-7)
Location: JULESBURG
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in SEDGWICK, COLORADO
From 19-JUN-11 17:24:00 to 19-JUN-11 17:24:00 (MST-7)
Location: JULESBURG
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in SEDGWICK, COLORADO
From 19-JUN-11 17:17:00 to 19-JUN-11 17:17:00 (MST-7)
Location: SEDGWICK
Magnitude: 1.25 
Reported by: Storm Chaser

Hail in LOGAN, COLORADO
From 19-JUN-11 17:30:00 to 19-JUN-11 17:30:00 (MST-7)
Location: FLEMING
Magnitude: 1.75 
Reported by: Trained Spotter

The spotter also estimated the wind gust to 60 mph.