A Pacific storm system moved out of the Four Corners region and into southeast Colorado and resulted in blizzard conditions over parts of east central Colorado.  The storm produced a sharp snowfall and wind gradient across the Urban Corridor with little or no snow accumulation in Fort Collins and Boulder, and the northern suburbs of Denver, then translate to heavy snow and blizzard conditions across the southern and eastern suburbs.  The Palmer Divide south and southeast of Denver was hit the hardest.  Numerous road closures occurred south and southeast of Denver, including both directions of Interstate 70 from E-470 to Limon because of windy and whiteout conditions.  Interstate 25 was closed from Monument Hill to Castle Rock, when two semi trucks jackknifed.  The Colorado State Patrol reported an estimate of at least 100 to 150 vehicles were stranded in that area during the closure. In addition, numerous schools were closed and over 150 flights cancelled at Denver International Airport.  Although the wind was not as strong, heavy snow fell in the southern Front Range Foothills.  Storm totals in the foothills south of Interstate 70, and from the southern Denver suburbs, toward the Palmer Divide, ranged from 8 to 19 inches.  The strongest winds east of Interstate 25, producing snow drifts from 2 to 6 feet deep south of Denver.  In the Front Range mountains west of Denver, storm totals ranged from 4 to 9 inches.

Blizzard in ELBERT / C & E DOUGLAS COUNTIES ABOVE 6000 FEET, COLORADO
From 16-NOV-15 18:00:00 to 17-NOV-15 11:00:00 (MST-7)
Reported by: Trained Spotter

Storm totals included:  19 inches, 4 miles west-northwest of Elizabeth; 16 inches, 2 miles west of Monument; 14 inches, 3 miles south-southeast of Larkspur; 11 inches near Lone Tree, 9 inches near Ponderosa Park, 8.5 inches at Franktown and 5 miles south-southeast of Sedalia, 7.5 inches near Castle Rock and 6 inches, 3 miles northeast of Parker.  Peak wind gusts included:  49 mph in Kiowa, 47 mph at Elbert and 45 mph in Castle Rock.  Snowdrifts 4 to 6 feet in depth were reported near Elizabeth and Larkspur.

Winter Weather in S & E JACKSON / LARIMER / N & NE GRAND / NW BOULDER COUNTIES ABOVE 9000 FEET, COLORADO
From 16-NOV-15 11:00:00 to 17-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Winter Weather in S & SE GRAND / W CENTRAL & SW BOULDER / GILPIN / CLEAR CREEK / SUMMIT / N & W PARK COUNTIES ABOVE 9000 FEET, COLORADO
From 16-NOV-15 11:00:00 to 17-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Winter Weather in BOULDER & JEFFERSON COUNTIES BELOW 6000 FEET / W BROOMFIELD COUNTY, COLORADO
From 16-NOV-15 08:00:00 to 17-NOV-15 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals from north to south ranged from a trace in Boulder to 6.5 inches near Morrison.

Blizzard in WASHINGTON COUNTY, COLORADO
From 16-NOV-15 20:00:00 to 17-NOV-15 14:00:00 (MST-7)
Reported by: AWOS

Storm totals ranged from 1 to 2 inches, coupled with a peak wind gust to 49 mph at Akron Airport.

Blizzard in N DOUGLAS COUNTY BELOW 6000 FEET / DENVER / W ADAMS & ARAPAHOE COUNTIES / E BROOMFIELD COUNTY, COLORADO
From 16-NOV-15 20:00:00 to 17-NOV-15 08:00:00 (MST-7)
Reported by: ASOS

Storm totals included:  11 inches in Centennial, 10 inches, 2 miles southwest of Aurora, 8 inches in Aurora and 3 miles southwest of Buckley AFB; 6 inches, 3 miles northeast of Parker, 5 inches, 3 miles southeast of Denver, 4.5 inches in Englewood and Northglenn; 4 inches in Westiminster.  At Denver International Airport, sustained winds of 35 mph with a peak wind gust to 58 mph was observed.  In addition, peak wind gusts to 47 mph occurred at Centennial Airport with 44 mph at Front Range Airport in Watkins along with snow drifts up to 2.5 ft deep in Aurora.

Blizzard in C & E ADAMS & ARAPAHOE COUNTIES, COLORADO
From 16-NOV-15 20:00:00 to 17-NOV-15 11:00:00 (MST-7)
Reported by: AWOS

Storm totals included 8.5 inches, 4 miles south-southeast of Bennett coupled with a sustained winds in excess of 30 mph with a peak gust to 43 mph.

Winter Storm in JEFFERSON & W DOUGLAS COUNTIES ABOVE 6000 FEET / GILPIN / CLEAR CREEK / NE PARK COUNTIES BELOW 9000 FEET, COLORADO
From 16-NOV-15 20:00:00 to 17-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm totals included: 16 inches, 3 miles south of Evergreen and Genesee; 15 inches near Tiny Town, 14 inches near Kittredge, 13 inches, 4 miles west-northwest of Conifer, 13 inches near Bergen Park, 12 inches, 5 miles southwest of Golden; 11 inches at Aspen Springs, 8 inches at Cheesman, Pine Junction, 3 miles southwest of Roxborough State Park and Strontia Springs Dam; 7.5 inches at Crow Hill, 7 inches at Bailey.

Blizzard in N & NE ELBERT COUNTY BELOW 6000 FEET / N LINCOLN COUNTY, COLORADO
From 16-NOV-15 20:00:00 to 17-NOV-15 14:00:00 (MST-7)
Reported by: Trained Spotter

Storm totals ranged from 2 inches at Hugo and Genoa to 9 inches at Agate; in addition to a peak wind gust of 61 mph at Limon Airport.

Blizzard in PHILLIPS COUNTY, COLORADO
From 16-NOV-15 20:00:00 to 17-NOV-15 14:00:00 (MST-7)
Reported by: Social Media

Storm totals ranged from a trace to 2 inches, with a peak wind gust to 51 mph at Holyoke Airport.