Colorado, 2020Heavy Snow in Colorado, December 10 to 12, 2020
December 10 to 12, 2020 · NWS PUB · 2 events in 2 counties and zones
An upper level system moved across the region during this period, and provided widespread accumulating snow to southern Colorado. Many snowfall reports under six inches were observed, however, a few reports of heavier snow occurred closer to the Colorado and New Mexico border.
Every event with a place to put it; 2 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
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 2
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.
An upper level system moved across the region during this period, and provided widespread accumulating snow to southern Colorado. Many snowfall reports under six inches were observed, however, a few reports of heavier snow occurred closer to the Colorado and New Mexico border.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pueblo, CO wrote its last area forecast discussion before the first event at Dec 10, 7:50 PM MST, 1 hour 10 minutes earlier.
Area forecast discussion, Dec 10, 7:50 PM MST, 1 hour 10 minutes before
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</html>Heavy Snow, Southern San Luis Valley
- When
- December 10, 9:00 PM MST to December 11, 6:00 AM MST
- Where
- Southern San Luis Valley forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 37.240, -105.810 (the zone’s center; the record gives no point)
Heavy snow of 8.5 inches. 2 east Fort Garland.
Heavy Snow, Eastern San Juan Mountains Above 10000 Ft
- When
- December 11, 2:00 AM MST to December 12, 6:20 AM MST
- Where
- Eastern San Juan Mountains Above 10000 Ft forecast zone
- Reported by
- Public
- Coordinates
- 37.484, -106.500 (the zone’s center; the record gives no point)
Heavy snow of 15.0 inches. 1 southeast Wolf Creek Pass.
- Heavy Snow
- Snowfall reaching the local warning threshold without the other hazards of a winter storm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Flash Flood and Heavy Rain in American Samoa, December 10 to 18, 2020$170,000 · 2 events
- Dense Fog in Montana, December 10 to 11, 20209 events
- Dense Fog in Montana, December 10 to 11, 20206 events
- Winter Weather in Colorado, December 10 to 11, 20204 events
- High Wind in Texas, December 10, 202050 kt wind · 1 event
- Winter Weather in Colorado, December 10 to 11, 20201 event
- Winter Weather in Kansas, December 10 to 11, 20201 event
- High Wind in California, December 10, 202050 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 2026-09-30. Each event’s entry at NCEI: 935678, 935679.