Severe thunderstorms developed over the Front Range Foothill of Boulder, Larimer and Gilpin Counties; then spread east into the Urban Corridor and adjacent plains.  Large hail, ranging from quarter to golfball size, was reported.  In addition, damaging thunderstorm
winds snapped large branches and knocked down power lines.

Hail in GILPIN, COLORADO
From 28-JUN-13 18:00:00 to 28-JUN-13 18:00:00 (MST-7)
Location: CENTRAL CITY
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in LARIMER, COLORADO
From 28-JUN-13 18:34:00 to 28-JUN-13 18:34:00 (MST-7)
Location: CAMPION
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in BOULDER, COLORADO
From 28-JUN-13 18:45:00 to 28-JUN-13 18:45:00 (MST-7)
Location: LYONS
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in LARIMER, COLORADO
From 28-JUN-13 18:50:00 to 28-JUN-13 18:50:00 (MST-7)
Location: DRAKES
Magnitude: 65.00 MG
Reported by: Trained Spotter

Hail in LARIMER, COLORADO
From 28-JUN-13 18:50:00 to 28-JUN-13 18:50:00 (MST-7)
Location: DRAKES
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in LARIMER, COLORADO
From 28-JUN-13 18:20:00 to 28-JUN-13 18:20:00 (MST-7)
Location: LOVELAND
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in DOUGLAS, COLORADO
From 28-JUN-13 19:01:00 to 28-JUN-13 19:01:00 (MST-7)
Location: CASTLE ROCK
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in CLEAR CREEK, COLORADO
From 28-JUN-13 18:15:00 to 28-JUN-13 18:15:00 (MST-7)
Location: DUMONT
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in CLEAR CREEK, COLORADO
From 28-JUN-13 18:15:00 to 28-JUN-13 18:15:00 (MST-7)
Location: DUMONT
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in LARIMER, COLORADO
From 28-JUN-13 18:47:00 to 28-JUN-13 18:57:00 (MST-7)
Location: LOVELAND
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in DOUGLAS, COLORADO
From 28-JUN-13 18:56:00 to 28-JUN-13 18:56:00 (MST-7)
Location: ORSA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WELD, COLORADO
From 28-JUN-13 19:35:00 to 28-JUN-13 19:35:00 (MST-7)
Location: KOENIG
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in LARIMER, COLORADO
From 28-JUN-13 19:24:00 to 28-JUN-13 19:24:00 (MST-7)
Location: HARMONY
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in BOULDER, COLORADO
From 28-JUN-13 19:20:00 to 28-JUN-13 19:20:00 (MST-7)
Location: BOULDER
Magnitude: 1.50 
Reported by: Public

Hail in WELD, COLORADO
From 28-JUN-13 19:00:00 to 28-JUN-13 19:00:00 (MST-7)
Location: WINDSOR
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in WELD, COLORADO
From 28-JUN-13 19:53:00 to 28-JUN-13 19:53:00 (MST-7)
Location: FIRESTONE J BAR B AR
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in BOULDER, COLORADO
From 28-JUN-13 19:58:00 to 28-JUN-13 19:58:00 (MST-7)
Location: LONGMONT
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in BOULDER, COLORADO
From 28-JUN-13 19:57:00 to 28-JUN-13 19:57:00 (MST-7)
Location: LONGMONT
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in LARIMER, COLORADO
From 28-JUN-13 19:08:00 to 28-JUN-13 19:08:00 (MST-7)
Location: BLACK HOLLOW JCT
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in LARIMER, COLORADO
From 28-JUN-13 19:49:00 to 28-JUN-13 19:49:00 (MST-7)
Location: CAMPION
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in DOUGLAS, COLORADO
From 28-JUN-13 18:55:00 to 28-JUN-13 18:55:00 (MST-7)
Location: ORSA
Magnitude: 52.00 MG
Reported by: Trained Spotter

Thunderstorm Wind in LARIMER, COLORADO
From 28-JUN-13 20:20:00 to 28-JUN-13 20:20:00 (MST-7)
Location: HARMONY
Magnitude: 61.00 EG
Reported by: Trained Spotter

Strong winds associated with a severe thunderstorm knocked down power lines.

Hail in WELD, COLORADO
From 28-JUN-13 20:14:00 to 28-JUN-13 20:14:00 (MST-7)
Location: GALETON
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in LARIMER, COLORADO
From 28-JUN-13 19:30:00 to 28-JUN-13 19:30:00 (MST-7)
Location: DRAKES
Magnitude: 61.00 EG
Reported by: Trained Spotter

Damaging thunderstorm winds snapped large branches, up to six inches in diameter.

Hail in MORGAN, COLORADO
From 28-JUN-13 20:40:00 to 28-JUN-13 20:40:00 (MST-7)
Location: ORCHARD
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in MORGAN, COLORADO
From 28-JUN-13 21:11:00 to 28-JUN-13 21:11:00 (MST-7)
Location: VALLERY
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in BOULDER, COLORADO
From 28-JUN-13 20:57:00 to 28-JUN-13 20:57:00 (MST-7)
Location: BOULDER
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in BOULDER, COLORADO
From 28-JUN-13 21:05:00 to 28-JUN-13 21:05:00 (MST-7)
Location: MARSHALL
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in LARIMER, COLORADO
From 28-JUN-13 18:58:00 to 28-JUN-13 18:58:00 (MST-7)
Location: DRAKES
Magnitude: 52.00 MG
Reported by: Trained Spotter

Hail in BOULDER, COLORADO
From 28-JUN-13 17:08:00 to 28-JUN-13 17:08:00 (MST-7)
Location: WARD
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in BOULDER, COLORADO
From 28-JUN-13 18:37:00 to 28-JUN-13 18:37:00 (MST-7)
Location: LYONS
Magnitude: 1.25 
Reported by: Trained Spotter