Colorado, 2007Winter Weather in Colorado, November 20 to 21, 2007
November 20 to 21, 2007 · NWS BOU · 7 events in 7 counties and zones
A storm system brought moderate to heavy snowfall to the North-Central Mountains as well as to areas in and near the Front Range Foothills. 5 inches; 3 miles west of Jamestown, 7 inches; 7 miles east-northeast of Red Feather Lakes at Roach Snotel, with 6 inches observed at Bear Lake National Park, 1 mile north of Bergen Park, 3 miles southwest of Conifer, Pinewood Lake and Winter Park.
Every event with a place to put it; 7 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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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 7
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.
A storm system brought moderate to heavy snowfall to the North-Central Mountains as well as to areas in and near the Front Range Foothills. Storm totals included: 11.5 inches at the Tower Snotel, 8 inches; 4 miles west-southwest of Eldorado Springs, 7.5 inches; 3 miles west of Jamestown, 7 inches; 7 miles east-northeast of Red Feather Lakes at Roach Snotel, with 6 inches observed at Bear Lake National Park, 1 mile north of Bergen Park, 3 miles southwest of Conifer, Pinewood Lake and Winter Park. Along the Urban Corridor there were some locally higher amounts reported near the foothills of Boulder and Larimer Counties. Storm totals in those areas included: 7 inches; 3 miles south-southeast of Fort Collins with 6 inches observed in Boulder and at Horsetooth Inlet Bay. Elsewhere across the Urban Corridor, storm totals ranged from 2 to 5 inches.
Winter Weather, West Jackson & West Grand Counties Above 9000 Feet
- When
- November 20, 8:00 PM MST to November 21, 11:00 AM MST
- Where
- West Jackson & West Grand Counties Above 9000 Feet forecast zone
- Reported by
- Mesonet
- Coordinates
- 40.385, -106.230 (the zone’s center; the record gives no point)
Winter Weather, S & E Jackson / Larimer / N & Ne Grand / Nw Boulder Counties Above 9000 Feet
- When
- November 20, 8:00 PM MST to November 21, 11:00 AM MST
- Where
- S & E Jackson / Larimer / N & Ne Grand / Nw Boulder Counties Above 9000 Feet forecast zone
- Reported by
- Mesonet
- Coordinates
- 40.382, -105.820 (the zone’s center; the record gives no point)
Winter Weather, S & Se Grand / W Central & Sw Boulder / Gilpin / Clear Creek / Summit / N & W Park Counties Above 9000 Feet
- When
- November 20, 8:00 PM MST to November 21, 11:00 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
- Mesonet
- Coordinates
- 39.726, -105.675 (the zone’s center; the record gives no point)
Winter Weather, Larimer & Boulder Counties Between 6000 & 9000 Feet
- When
- November 20, 8:00 PM MST to November 21, 11:00 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)
Winter Weather, Jefferson & W Douglas Counties Above 6000 Feet / Gilpin / Clear Creek / Ne Park Counties Below 9000 Feet
- When
- November 20, 8:00 PM MST to November 21, 11:00 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)
Winter Weather, Larimer County Below 6000 Feet / Nw Weld County
- When
- November 20, 8:00 PM MST to November 21, 11:00 AM MST
- Where
- Larimer County Below 6000 Feet / Nw Weld County forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 40.611, -104.926 (the zone’s center; the record gives no point)
Winter Weather, Boulder & Jefferson Counties Below 6000 Feet / W Broomfield County
- When
- November 20, 8:00 PM MST to November 21, 11:00 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)
- 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.
- Winter Weather in Massachusetts, November 20, 20073 injured · 2 events
- Winter Weather in New York, November 20, 200719 events
- Drought in Virginia, November 20 to 30, 20075 events
- Dense Fog in New Jersey, November 20, 20075 events
- Dense Fog in Wisconsin, November 20, 20073 events
- Winter Weather in Vermont, November 20, 20073 events
- Winter Weather in Pennsylvania, November 20, 20072 events
- Winter Weather in Connecticut, November 20, 20072 events
- Winter Weather in New Jersey, November 20, 20071 event
- Dense Fog in Delaware, November 20, 20071 event
- High Wind in Alaska, November 20 to 21, 200778 kt wind · 1 event
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: 63675, 63676, 63677, 63678, 63679, 63680, 63681.