Colorado, 2023

Winter Weather in Colorado, December 8 to 9, 2023

December 8 to 9, 2023 · NWS BOU · 5 events in 5 counties and zones

A storm system produce a period of moderate to heavy snowfall, especially in and near the Front Range mountains, foothills and Palmer Divide. Storm totals ranged from 6 to 12 inches in the mountains and foothills, with 4 to 7 inches over Boulder as well as western and southern portions of metro Denver.

Where it happened

Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
5

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS BOU wrote it up.

A storm system produce a period of moderate to heavy snowfall, especially in and near the Front Range mountains, foothills and Palmer Divide. Storm totals ranged from 6 to 12 inches in the mountains and foothills, with 4 to 7 inches over Boulder as well as western and southern portions of metro Denver. Interstate 70 closed was closed for a few hours west of Denver due to heavy snow as well as vehicle spinouts. Several accidents also reported around Denver metro area, with highest impacts on the west side of the city and in Boulder.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

5 winter weather. Local standard time, as filed.

Winter Weather, S & Se Grand / W Central & Sw Boulder / Gilpin / Clear Creek / Summit / N & W Park Counties Above 9000 Feet

When
December 8, 12:00 AM MST to 5:00 AM MST
Where
S & Se Grand / W Central & Sw Boulder / Gilpin / Clear Creek / Summit / N & W Park Counties Above 9000 Feet forecast zone
Reported by
SNOTEL
Coordinates
39.726, -105.675 (the zone’s center; the record gives no point)

Storm totals included: 10 inches at Winter Park. 8 inches at Copper Mountain and 7 inches at Breckenridge.

Winter Weather, Jefferson & W Douglas Counties Above 6000 Feet / Gilpin / Clear Creek / Ne Park Counties Below 9000 Feet

When
December 8, 5:00 PM MST to December 9, 5:00 AM MST
Where
Jefferson & W Douglas Counties Above 6000 Feet / Gilpin / Clear Creek / Ne Park Counties Below 9000 Feet forecast zone
Reported by
Trained Spotter
Coordinates
39.516, -105.413 (the zone’s center; the record gives no point)

Storm totals included: 14 inches near Crescent Village, 12 inches near Aspen Park, 11.5 inches near Conifer, 10 inches near Pinecliffe, and 8 inches near Evergreen.

Winter Weather, Larimer & Boulder Counties Between 6000 & 9000 Feet

When
December 8, 5:00 PM MST to December 9, 5:00 AM MST
Where
Larimer & Boulder Counties Between 6000 & 9000 Feet forecast zone
Reported by
Trained Spotter
Coordinates
40.380, -105.410 (the zone’s center; the record gives no point)

Storm totals included: 12.8 inches near Rollinsville, 12 inches near Sunshine, 10 inches near Nederland, and 8 inches near Red Feather Lakes.

Winter Weather, Boulder & Jefferson Counties Below 6000 Feet / W Broomfield County

When
December 8, 5:00 PM MST to December 9, 5:00 AM MST
Where
Boulder & Jefferson Counties Below 6000 Feet / W Broomfield County forecast zone
Reported by
Trained Spotter
Coordinates
39.878, -105.220 (the zone’s center; the record gives no point)

Storm totals included: 7.3 inches, 2 miles south of Boulder and southwest Lakewood, 6 inches in southeast Lakewood and Wheat Ridge, with 5.3 inches near Louisville.

Winter Weather, Elbert / C & E Douglas Counties Above 6000 Feet

When
December 8, 5:00 PM MST to December 9, 5:00 AM MST
Where
Elbert / C & E Douglas Counties Above 6000 Feet forecast zone
Reported by
Trained Spotter
Coordinates
39.422, -104.468 (the zone’s center; the record gives no point)

Storm totals included 4.8 inches west of Elbert.

What these are

Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Colorado in 2023Every state in 2023This day in weather historyWarnings in Colorado, December 2023

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1144002, 1144003, 1144004, 1144005, 1144006.