A strong late season winter storm moved into Colorado on Thursday, May 20st, bringing much colder temperatures and heavy snow in and near the Colorado Front Range.  Heavy, wet snow accumulated on trees which had already leafed out for the season, resulting in broken tree limbs and scattered power outages. At one point Saturday morning May 22nd, nearly 100,000 customers along the Front Range were without power. Snow accumulated on roads in the higher terrain, and portions of I-70 west of Denver were shut down for a brief period of time. Total snow accumulations ranged from 1 to 11 inches across the Boulder and Denver metro areas, to 6 to 18 inches across the Palmer Divide, to between 6 to 24 inches across the foothills and mountains from Boulder County south through Park County.

Winter Storm in WEST JACKSON & WEST GRAND COUNTIES ABOVE 9000 FEET, COLORADO
From 19-MAY-22 23:00:00 to 21-MAY-22 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Moderate to heavy snowfall accumulating 3 to 12 inches over about a day.

Winter Storm in S & SE GRAND / W CENTRAL & SW BOULDER / GILPIN / CLEAR CREEK / SUMMIT / N & W PARK COUNTIES ABOVE 9000 FEET, COLORADO
From 20-MAY-22 08:00:00 to 21-MAY-22 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Moderate to heavy snowfall accumulating 6 to 22 inches over about a day.

Winter Storm in S & E JACKSON / LARIMER / N & NE GRAND / NW BOULDER COUNTIES ABOVE 9000 FEET, COLORADO
From 20-MAY-22 03:00:00 to 21-MAY-22 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Moderate to heavy snowfall accumulating 6 to 23 inches over about a day.

Winter Storm in GRAND & SUMMIT COUNTIES BELOW 9000 FEET, COLORADO
From 19-MAY-22 23:00:00 to 21-MAY-22 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Light to heavy snowfall accumulating 2 to 11 inches over about a day.

Winter Weather in JACKSON COUNTY BELOW 9000 FEET, COLORADO
From 19-MAY-22 23:00:00 to 21-MAY-22 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light to moderate snowfall accumulating 2 to 6 inches over about a day.

Winter Storm in LARIMER & BOULDER COUNTIES BETWEEN 6000 & 9000 FEET, COLORADO
From 20-MAY-22 03:00:00 to 21-MAY-22 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light to heavy snowfall accumulating 3 to 17 inches over about a day.

Winter Storm in C & SE PARK COUNTY, COLORADO
From 20-MAY-22 10:00:00 to 21-MAY-22 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Moderate to heavy snowfall accumulating 6 to 24 inches over about a day.

Winter Storm in BOULDER & JEFFERSON COUNTIES BELOW 6000 FEET / W BROOMFIELD COUNTY, COLORADO
From 20-MAY-22 05:00:00 to 20-MAY-22 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light to heavy snowfall accumulating 1 to 11 inches over about a day.

Winter Storm in N DOUGLAS COUNTY BELOW 6000 FEET / DENVER / W ADAMS & ARAPAHOE COUNTIES / E BROOMFIELD COUNTY, COLORADO
From 20-MAY-22 07:00:00 to 21-MAY-22 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light to heavy snowfall accumulating 1 to 8 inches over about a day.

Winter Storm in ELBERT / C & E DOUGLAS COUNTIES ABOVE 6000 FEET, COLORADO
From 20-MAY-22 10:00:00 to 21-MAY-22 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Moderate to heavy snowfall accumulating 6 to 18 inches over about a day.

Winter Storm in JEFFERSON & W DOUGLAS COUNTIES ABOVE 6000 FEET / GILPIN / CLEAR CREEK / NE PARK COUNTIES BELOW 9000 FEET, COLORADO
From 20-MAY-22 08:00:00 to 21-MAY-22 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Moderate to heavy snowfall accumulating 6 to 24 inches over about a day.

Winter Storm in N & NE ELBERT COUNTY BELOW 6000 FEET / N LINCOLN COUNTY, COLORADO
From 20-MAY-22 12:00:00 to 21-MAY-22 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Moderate to heavy snowfall accumulating 3 to 12 inches over about a day.

Winter Weather in SE ELBERT COUNTY BELOW 6000 FEET / SOUTH LINCOLN COUNTY, COLORADO
From 20-MAY-22 17:00:00 to 21-MAY-22 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light to moderate snowfall accumulating 2 to 10 inches over about a day.