Severe thunderstorms, producing hail up to quarter size, and heavy rain; trained across northern portions of the Denver Metropolitan area.  The path of the storms stretched from around Golden to Denver International Airport.  The thunderstorms formed quickly following the passage of a cold front.
Some minor street flooding was also reported as hail clogged storm drains.  The hail piled up 4 inches deep at Elitch Gardens amusement park in downtown Denver.  Drivers were caught in up to 3 feet of water in some intersections.  Xcel reported scattered power failures around the Denver metropolitan area. At D.I.A. some brief delays occurred as airlines were forced to pull in their ground crews for safety reasons.  Lightning also struck two homes in Ft. Collins.  No one was hurt in either incident.  The incliment conditions forced the closure of Trail Ridge Road, in Rocky Mountain National Park, due to snow and very poor visibility.
Severe thunderstorms developed further south along the Palmer Divide. Hail up to 2.5 inches in diameter was reported over southern Elbert County.  Hail damage was reported in the towns of Elbert and Limon, where skylights and windows were broken.  Two tornadoes touched down but no structures were damaged.

Hail in JEFFERSON, COLORADO
From 29-MAY-07 12:06:00 to 29-MAY-07 12:06:00 (MST-7)
Location: PLEASANT VIEW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, COLORADO
From 29-MAY-07 11:35:00 to 29-MAY-07 11:35:00 (MST-7)
Location: EDGEWATER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DENVER, COLORADO
From 29-MAY-07 12:06:00 to 29-MAY-07 12:06:00 (MST-7)
Location: DENVER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DOUGLAS, COLORADO
From 29-MAY-07 12:07:00 to 29-MAY-07 12:07:00 (MST-7)
Location: CASTLE ROCK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, COLORADO
From 29-MAY-07 11:05:00 to 29-MAY-07 11:05:00 (MST-7)
Location: PLEASANT VIEW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, COLORADO
From 29-MAY-07 11:13:00 to 29-MAY-07 11:13:00 (MST-7)
Location: GOLDEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ELBERT, COLORADO
From 29-MAY-07 13:05:00 to 29-MAY-07 13:05:00 (MST-7)
Location: ELBERT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DOUGLAS, COLORADO
From 29-MAY-07 14:14:00 to 29-MAY-07 14:14:00 (MST-7)
Location: FRANKTOWN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINCOLN, COLORADO
From 29-MAY-07 15:28:00 to 29-MAY-07 15:28:00 (MST-7)
Location: LIMON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINCOLN, COLORADO
From 29-MAY-07 15:30:00 to 29-MAY-07 15:30:00 (MST-7)
Location: LIMON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in ELBERT, COLORADO
From 29-MAY-07 14:27:00 to 29-MAY-07 14:27:00 (MST-7)
Location: SIMLA
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tornado touched down but did no damage.

Hail in ELBERT, COLORADO
From 29-MAY-07 13:55:00 to 29-MAY-07 13:55:00 (MST-7)
Location: ELBERT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DENVER, COLORADO
From 29-MAY-07 13:10:00 to 29-MAY-07 13:10:00 (MST-7)
Location: DENVER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in ELBERT, COLORADO
From 29-MAY-07 13:55:00 to 29-MAY-07 13:55:00 (MST-7)
Location: ELBERT
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in ELBERT, COLORADO
From 29-MAY-07 15:00:00 to 29-MAY-07 15:00:00 (MST-7)
Location: RIVER BEND
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tornado touched down but did no damage.

Lightning in LARIMER, COLORADO
From 29-MAY-07 11:40:00 to 29-MAY-07 11:40:00 (MST-7)
Location: FT COLLINS
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in DENVER, COLORADO
From 29-MAY-07 12:35:00 to 29-MAY-07 12:35:00 (MST-7)
Location: DENVER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DENVER, COLORADO
From 29-MAY-07 12:50:00 to 29-MAY-07 12:50:00 (MST-7)
Location: DENVER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, COLORADO
From 29-MAY-07 13:11:00 to 29-MAY-07 13:11:00 (MST-7)
Location: MONUMENT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ELBERT, COLORADO
From 29-MAY-07 13:19:00 to 29-MAY-07 13:19:00 (MST-7)
Location: ELBERT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, COLORADO
From 29-MAY-07 13:01:00 to 29-MAY-07 13:01:00 (MST-7)
Location: GOLDEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ELBERT, COLORADO
From 29-MAY-07 13:40:00 to 29-MAY-07 13:40:00 (MST-7)
Location: ELIZABETH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Lightning in LARIMER, COLORADO
From 29-MAY-07 11:57:00 to 29-MAY-07 11:57:00 (MST-7)
Location: FT COLLINS
Property damage: 35.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in JEFFERSON, COLORADO
From 29-MAY-07 12:27:00 to 29-MAY-07 12:27:00 (MST-7)
Location: EDGEWATER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DENVER, COLORADO
From 29-MAY-07 12:33:00 to 29-MAY-07 12:33:00 (MST-7)
Location: SOUTH DENVER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, COLORADO
From 29-MAY-07 12:11:00 to 29-MAY-07 12:11:00 (MST-7)
Location: GOLDEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DENVER, COLORADO
From 29-MAY-07 12:27:00 to 29-MAY-07 12:27:00 (MST-7)
Location: DENVER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter