A slow moving and powerful storm system brought heavy snow to areas in and near the Front Range Foothills, with blizzard conditions over the northeastern plains of Colorado.  In the Front Range Foothills, the snow piled up to over 4 feet in some areas.  Across the Palmer Divide, the combination of snow and gusty winds resulted in road closures with snow drifts ranging from 2 to 5 feet in depth.  Northerly winds 15 to 25 mph were common with gusts to 40 mph.   Several snowfall records were also set in Denver.  At Denver International Airport, 12.5 inches of snow feet on the 3rd shattered the previous record of 7.5 inches for the date.  It also set a new daily record for the entire month of February.  A new 3-day record was also established for Denver.  The 3-day storm total from February 2nd to the 4th was 15.9 inches, which broke the previous record of 14.1 inches in 1912.  In contrast, storm totals generally ranged from 1 to 3 inches in the mountains west of the Continental Divide.
Denver International Airport canceled more than six hundred flights.  In addition, snow and blowing snow produced near zero visibilities, forcing officials to close the westbound lanes of Interstate 70, between the Kansas state line and Denver, as well as the eastbound lanes from Denver to Limon.  Other road closures included:  State Highway 86, between Kiowa and I-70, U.S. Highway 40, between Limon and Eads, and State Highway 71, from Last Chance to Limon to Ordway.
Storm totals along the Front Range Mountains and Foothills included:  51 inches at Coal Creek Canyon, 45.5 inches, 4.6 miles northeast of Ward; 44.5 inches, 3 miles west of Jamestown; 38 inches, 3 miles north of Blackhawk; 37 inches, 3 miles west-southwest of Conifer and 4 miles east-northeast of Nederland; 35.5 inches, 3.6 miles west-northwest of Boulder; 34 inches, 5.2 miles east-southeast of Aspen Springs; 33 inches near Evergreen, 32 inches at Genesee; 31 inches, 10.3 miles west of Bellvue and Eldora Mountain Ski Resort; 30 inches, 10.6 miles west of Livermore; 28 inches; 3.2 miles north-northwest of Horsetooth Mountain; 27 inches at Deadman Hill; 24 inches at Echo Mountain Ski Resort; 21 inches at Niwot Ridge SNOTEL; 19 inches at Gross Reservoir;  15 inches at Bear Lake State Park; with 14 inches near Estes Park and Glen Haven.
Along the Urban Corridor storm totals included:  22 inches in Broomfield; 21 inches at Lafayette, Louisville and Westminster; 20 inches at Northglenn; 19 inches at the National Weather Service in Boulder, Castle Rock, Centenniel and Parker;  18 inches in Arvada, 16.5 inches in Erie, 13.5 inches near Longmont; 11.5 inches in Fort Collins and Loveland; 11 inches in Lyons and 10 inches in Frederick.
Along the Palmer Divide storm totals included:  26 inches, 14 miles east-northeast of Kiowa; 25 inches, 10 miles south-southwest of Buckley Air Force Base, and 8 miles southeast of Watkins; 20 inches near Strasburg; 16 inches at Agate, 12 inches near Elizabeth; and 8 inches, 5 miles south-southeast of Sedalia.
Across the northeast plains of Colorado, storm totals included:  13 inches, 11 miles east-southeast of Holyoke; 11 inches, 4 miles north of Arriba; 10 inches, 6.4 miles west-northwest of Otis and Woodrow; 9.5 inches near Amherst; 6.5 inches in Sterling; 6 inches in Brush; with 5.5 inches in Karval.

Winter Weather in S & E JACKSON / LARIMER / N & NE GRAND / NW BOULDER COUNTIES ABOVE 9000 FEET, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in S & SE GRAND / W CENTRAL & SW BOULDER / GILPIN / CLEAR CREEK / SUMMIT / N & W PARK COUNTIES ABOVE 9000 FEET, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in JEFFERSON & W DOUGLAS COUNTIES ABOVE 6000 FEET / GILPIN / CLEAR CREEK / NE PARK COUNTIES BELOW 9000 FEET, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in LARIMER COUNTY BELOW 6000 FEET / NW WELD COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in BOULDER & JEFFERSON COUNTIES BELOW 6000 FEET / W BROOMFIELD COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in N DOUGLAS COUNTY BELOW 6000 FEET / DENVER / W ADAMS & ARAPAHOE COUNTIES / E BROOMFIELD COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in C & S WELD COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in MORGAN COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in C & E ADAMS & ARAPAHOE COUNTIES, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in N & NE ELBERT COUNTY BELOW 6000 FEET / N LINCOLN COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in WASHINGTON COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in LOGAN COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in SEDGWICK COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in PHILLIPS COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in LARIMER & BOULDER COUNTIES BETWEEN 6000 & 9000 FEET, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in SE ELBERT COUNTY BELOW 6000 FEET / SOUTH LINCOLN COUNTY, COLORADO
From 02-FEB-12 17:00:00 to 04-FEB-12 03:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter