A powerful winter storm brought very heavy snowfall to the Front Range Mountains, Foothills, I-25 corridor and northeast plains.  Heavy snow developed in and near the Front Range Foothills of Larimer and Boulder counties, then spread south and east across the rest of the region.  All schools were closed on the 25th and 26th across the entire area, including all the major universities and colleges across northeast and north central Colorado. Federal, state, city, and county offices were closed on the 25th.   I-70 west of Denver was closed due to a rock slide. I-76 and I-70 northeast and east of Denver were closed for 10 and 7 hours respectively. Other east/west highways including US 34 and US 36, were closed due to blowing and drifting snow. A total of 500 flights were canceled at Denver International Airport.
In the foothills of Larimer County, Buckhorn Mountain received top honors with a storm total of 40.5 inches.  Other reports in Larimer County included:  35.5 inches near Glen Haven; 33 inches near Drake; 32 inches, 11 miles southeast of Estes Park and 4 miles east-northeast of Red Feather Lakes.  Boulder and Fort Collins reported 22.1 and 17 inches in less than 24 hours respectively; which become the second highest snowfall for those cities in the month of November. At Denver International Airport, the official snowfall measurement was 9.5 inches.   Across the rest of the Front Range Foothills, storm totals ranged from 12 to 30 inches.  Storm totals along the I-25 corridor ranged from 9 to 18 inches.  The eastern plains picked anywhere from 4 to 13 inches of snowfall.

Winter Weather in C & SE PARK COUNTY, COLORADO
From 25-NOV-19 17:00:00 to 26-NOV-19 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals ranged from 4 to 7 inches.

Blizzard in C & E ADAMS & ARAPAHOE COUNTIES, COLORADO
From 26-NOV-19 04:16:00 to 26-NOV-19 12:00:00 (MST-7)
Reported by: Trained Spotter

Whiteout conditions due to blowing and drifting snow resulted multiple road closures, as well as the closure of schools, state and federal buildings.

Winter Weather in SE ELBERT COUNTY BELOW 6000 FEET / SOUTH LINCOLN COUNTY, COLORADO
From 25-NOV-19 23:00:00 to 26-NOV-19 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Strong wind gusts and light snow produced areas of blowing and drifting snow, along with poor visibility.

Winter Storm in WASHINGTON COUNTY, COLORADO
From 25-NOV-19 20:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included:  13 inches, 5.7 miles west of Otis; 6 inches, 6 miles southeast of Anton and 17 miles south-southeast of Woodrow.

Winter Weather in S & SE GRAND / W CENTRAL & SW BOULDER / GILPIN / CLEAR CREEK / SUMMIT / N & W PARK COUNTIES ABOVE 9000 FEET, COLORADO
From 25-NOV-19 17:00:00 to 25-NOV-19 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Storm totals included:  12 inches, 9 miles southeast of Weston Pass; 10.5 inches near Echo Lake, with 4 to 8 inches elsewhere.

Winter Weather in PHILLIPS COUNTY, COLORADO
From 25-NOV-19 23:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Strong wind gusts and light snow produced areas of blowing and drifting snow, along with poor visibility.

Winter Weather in SEDGWICK COUNTY, COLORADO
From 25-NOV-19 23:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Strong wind gusts and light snow produced areas of blowing and drifting snow, along with poor visibility.

Winter Weather in LOGAN COUNTY, COLORADO
From 25-NOV-19 23:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Strong wind gusts and light snow produced areas of blowing and drifting snow, along with poor visibility.

Winter Storm in S & E JACKSON / LARIMER / N & NE GRAND / NW BOULDER COUNTIES ABOVE 9000 FEET, COLORADO
From 25-NOV-19 15:00:00 to 26-NOV-19 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Storm totals included:  21 inches, 9 miles southeast of Cameron Pass; 18 inches, 4 miles north-northwest of Longs Peak and 7 miles northwest of Red Feather Lakes; 16.5 inches, 9 miles east of Glendevey and 3 miles southwest of Meeker; 15 inches at Bear Lake; 13.5 inches near Mount Audubon.

Winter Storm in NE WELD COUNTY, COLORADO
From 25-NOV-19 20:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included 7 inches, 21 miles north of New Raymer.

Winter Storm in LARIMER & BOULDER COUNTIES BETWEEN 6000 & 9000 FEET, COLORADO
From 25-NOV-19 15:00:00 to 26-NOV-19 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included:  40.5 inches at Buckhorn Mountain; 35.5 inches, 3 miles south-southeast of Glen Haven; 33 inches, 3 miles north-northeast of Drake; 32 inches, 11 miles southeast of Estes Park and 4 miles east-northeast of Red Feather Lakes; 24.5 inches, 3 miles west of Jamestown; 24 inches, 11 miles west-southwest of Livermore and 6 miles northwest of Lyons; 22 inches near Crisman; 21 inches, 4 miles east-northeast of Nederland; 20.5 inches near Allenspark; 17.5 inches, 7 miles east-northeast of Virginia Dale, 13.5 inches, 3 miles northeast of Aspen Springs; 13 inches near Estes Park; 9 inches, 9 miles west-southwest of Rustic.

Winter Weather in MORGAN COUNTY, COLORADO
From 25-NOV-19 23:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Strong wind gusts and light snow produced areas of blowing and drifting snow, along with poor visibility.

Winter Storm in JEFFERSON & W DOUGLAS COUNTIES ABOVE 6000 FEET / GILPIN / CLEAR CREEK / NE PARK COUNTIES BELOW 9000 FEET, COLORADO
From 25-NOV-19 17:00:00 to 26-NOV-19 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included:  30 inches near Crescent Village; 27.5 inches near Genesee; 23 inches near Aspen Park; 22.5 inches, 12 miles northwest of Golden and 4 miles southeast of Pinecliffe; 17 inches near Schaffers Crossing; 16 inches at Roxborough Park; 14 inches, 4 miles west-northwest of Conifer; 13.5 inches near  Evergreen; 10 inches at Aspen Springs.

Winter Storm in N & NE ELBERT COUNTY BELOW 6000 FEET / N LINCOLN COUNTY, COLORADO
From 25-NOV-19 20:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included 8 inches in Agate.

Winter Storm in LARIMER COUNTY BELOW 6000 FEET / NW WELD COUNTY, COLORADO
From 25-NOV-19 17:00:00 to 26-NOV-19 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included:  16 inches in Wellington; 15 inches, 2 miles north of Loveland; 14 inches, 2 miles northwest of Fort Collins; 12 inches in Fort Collins.

Blizzard in N & NE ELBERT COUNTY BELOW 6000 FEET / N LINCOLN COUNTY, COLORADO
From 26-NOV-19 04:16:00 to 26-NOV-19 12:00:00 (MST-7)
Reported by: Trained Spotter

Whiteout conditions due to blowing and drifting snow resulted multiple road closures, as well as the closure of schools, state and federal buildings.

Winter Storm in BOULDER & JEFFERSON COUNTIES BELOW 6000 FEET / W BROOMFIELD COUNTY, COLORADO
From 25-NOV-19 20:00:00 to 26-NOV-19 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included:  23 inches in Lyons; 22 inches at the National Weather Service in Boulder and 7 miles south of Lyons;  16 inches, 4 miles west-northwest of Arvada and near Louisville; 14 inches in Broomfield; 13.5 inches, 2 miles west of Westminster;  13 in Longmont; 12.5 inches near Thornton; 12 inches in Lafayette; 11.5 inches in Wheat Ridge, 11 inches in Edgewater, Erie and Northglenn.

Blizzard in NE WELD COUNTY, COLORADO
From 26-NOV-19 04:16:00 to 26-NOV-19 12:00:00 (MST-7)
Reported by: Trained Spotter

Whiteout conditions due to blowing and drifting snow resulted multiple road closures, as well as the closure of schools, state and federal buildings.

Winter Storm in N DOUGLAS COUNTY BELOW 6000 FEET / DENVER / W ADAMS & ARAPAHOE COUNTIES / E BROOMFIELD COUNTY, COLORADO
From 25-NOV-19 20:00:00 to 26-NOV-19 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The official snowfall measurement at Denver International Airport was 9.5 inches.

Blizzard in MORGAN COUNTY, COLORADO
From 26-NOV-19 04:16:00 to 26-NOV-19 12:00:00 (MST-7)
Reported by: Trained Spotter

Whiteout conditions due to blowing and drifting snow resulted multiple road closures, as well as the closure of schools, state and federal buildings.

Winter Storm in ELBERT / C & E DOUGLAS COUNTIES ABOVE 6000 FEET, COLORADO
From 25-NOV-19 20:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included:  16.5 inches in east Parker; 16 inches, 5 miles north of Elizabeth; 12 inches near Castle Rock and Elizabeth; with 10 inches in Lone Tree.

Blizzard in LOGAN COUNTY, COLORADO
From 26-NOV-19 04:16:00 to 26-NOV-19 12:00:00 (MST-7)
Reported by: Trained Spotter

Whiteout conditions due to blowing and drifting snow resulted multiple road closures, as well as the closure of schools, state and federal buildings.

Winter Storm in C & S WELD COUNTY, COLORADO
From 25-NOV-19 20:00:00 to 26-NOV-19 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included 8 inches, 6 miles northwest of Greeley and 6 inches at Firestone.

Blizzard in WASHINGTON COUNTY, COLORADO
From 26-NOV-19 04:16:00 to 26-NOV-19 12:00:00 (MST-7)
Reported by: Trained Spotter

Whiteout conditions due to blowing and drifting snow resulted multiple road closures, as well as the closure of schools, state and federal buildings.

Winter Storm in C & E ADAMS & ARAPAHOE COUNTIES, COLORADO
From 25-NOV-19 20:00:00 to 26-NOV-19 04:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included:  16 inches, 15 miles north of Elizabeth; 11.5 inches, 5 miles east-northeast of Byers; 7 inches, 2 miles west-southwest of Byers.

Blizzard in SEDGWICK COUNTY, COLORADO
From 26-NOV-19 04:16:00 to 26-NOV-19 12:00:00 (MST-7)
Reported by: Trained Spotter

Whiteout conditions due to blowing and drifting snow resulted multiple road closures, as well as the closure of schools, state and federal buildings.

Winter Weather in WEST JACKSON & WEST GRAND COUNTIES ABOVE 9000 FEET, COLORADO
From 25-NOV-19 13:00:00 to 26-NOV-19 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Storm totals included:  13.5 inches, 4 miles southeast of Mount Zirkel, 9 inches, 11 miles south of Buffalo Park and 9 miles south-southeast of Spicer.

Blizzard in PHILLIPS COUNTY, COLORADO
From 26-NOV-19 04:16:00 to 26-NOV-19 12:00:00 (MST-7)
Reported by: Trained Spotter

Whiteout conditions due to blowing and drifting snow resulted multiple road closures, as well as the closure of schools, state and federal buildings.