Thunderstorms produced very heavy rainfall, 1 to 2 inches in less than 30 minutes. In Englewood, the floodwaters quickly inundated a basement apartment and trapped a woman inside.  She was found unresponsive in the apartment and died several hours later. Several homes in the immediate area suffered severe flood damage.  The floodwaters also stalled vehicles and forced the closure of several intersections.  In Sheridan, the heavy rain created a large sinkhole which swallowed a small SUV. A downed power line caused a fire in Arapahoe County.   Severe thunderstorms produced damaging wind and hail in Jefferson, Logan, Morgan, Washington, and Weld counties.

Hail in MORGAN, COLORADO
From 24-JUL-18 18:46:00 to 24-JUL-18 18:46:00 (MST-7)
Location: FT MORGAN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MORGAN, COLORADO
From 24-JUL-18 18:48:00 to 24-JUL-18 18:48:00 (MST-7)
Location: FT MORGAN
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in MORGAN, COLORADO
From 24-JUL-18 18:40:00 to 24-JUL-18 18:40:00 (MST-7)
Location: FT MORGAN
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in MORGAN, COLORADO
From 24-JUL-18 18:48:00 to 24-JUL-18 18:48:00 (MST-7)
Location: FT MORGAN
Magnitude: 1.25 
Reported by: Public

Hail in MORGAN, COLORADO
From 24-JUL-18 19:04:00 to 24-JUL-18 19:04:00 (MST-7)
Location: HILLROSE
Magnitude: 0.88 
Reported by: CoCoRaHS

Hail in WELD, COLORADO
From 24-JUL-18 19:14:00 to 24-JUL-18 19:14:00 (MST-7)
Location: NEW RAYMER ARPT
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in WASHINGTON, COLORADO
From 24-JUL-18 19:21:00 to 24-JUL-18 19:21:00 (MST-7)
Location: MESSEX
Magnitude: 1.25 
Reported by: Law Enforcement

Large hail broke the window of a patrol car along Interstate 70 near Hillrose.

Hail in MORGAN, COLORADO
From 24-JUL-18 19:24:00 to 24-JUL-18 19:24:00 (MST-7)
Location: HILLROSE
Magnitude: 1.25 
Reported by: Trained Spotter

Thunderstorm Wind in MORGAN, COLORADO
From 24-JUL-18 20:40:00 to 24-JUL-18 20:40:00 (MST-7)
Location: FT MORGAN
Magnitude: 60.00 EG
Reported by: Law Enforcement

Intense thunderstorm winds knocked down numerous large tree branches in the residential areas of Fort Morgan.

Thunderstorm Wind in MORGAN, COLORADO
From 24-JUL-18 20:40:00 to 24-JUL-18 20:40:00 (MST-7)
Location: FT MORGAN
Magnitude: 60.00 EG
Reported by: Law Enforcement

Intense thunderstorm winds blew a trampoline from a residential area onto Highway 144.

Thunderstorm Wind in LOGAN, COLORADO
From 24-JUL-18 20:10:00 to 24-JUL-18 20:10:00 (MST-7)
Location: STERLING ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in JEFFERSON, COLORADO
From 24-JUL-18 17:13:00 to 24-JUL-18 17:13:00 (MST-7)
Location: COLUMBINE
Magnitude: 1.00 
Reported by: Public

Hail in WASHINGTON, COLORADO
From 24-JUL-18 19:29:00 to 24-JUL-18 19:29:00 (MST-7)
Location: MESSEX
Magnitude: 1.25 
Reported by: Public

Thunderstorm Wind in DENVER, COLORADO
From 24-JUL-18 17:44:00 to 24-JUL-18 17:44:00 (MST-7)
Location: DENVER
Magnitude: 52.00 EG
Reported by: Law Enforcement

Strong winds downed a tree.

Thunderstorm Wind in ARAPAHOE, COLORADO
From 24-JUL-18 17:46:00 to 24-JUL-18 17:46:00 (MST-7)
Location: GREENWOOD VLG
Magnitude: 52.00 EG
Reported by: Law Enforcement

Strong winds from a thunderstorm blew down a tree.  The tree fell onto a power line and caused a small fire.

Thunderstorm Wind in LOGAN, COLORADO
From 24-JUL-18 20:05:00 to 24-JUL-18 20:05:00 (MST-7)
Location: ATWOOD
Magnitude: 60.00 EG
Reported by: Law Enforcement

Strong winds caused some roof damage.

Hail in ARAPAHOE, COLORADO
From 24-JUL-18 17:18:00 to 24-JUL-18 17:18:00 (MST-7)
Location: SOUTH GLENN
Magnitude: 0.88 
Reported by: Trained Spotter

Flash Flood in ARAPAHOE, COLORADO
From 24-JUL-18 17:50:00 to 24-JUL-18 19:30:00 (MST-7)
Location: LITTLETON
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced very heavy rainfall, 1 to 2 inches in less than 30 minutes.  At 4600 South Acoma, the floodwaters quickly inundated a basement apartment and trapped a 32-year-old woman inside.  She was rescued, but died several hours later.
Floodwaters stalled several vehicles and forced the closure of several intersections including:  East Iliff Ave. and South Chambers Road, Santa Fe Drive and West Oxford Ave., South Buckley Road and East Bates Ave., East 6th Ave. and South Picadilly Road, East Hampden Ave and South Uruvan Way.  Flooding created a large sinkhole in Sheridan.  A small SUV was fell into the hole.  The driver was not injured.  She escaped her vehicle before it was swallowed by the sinkhole.