Colorado, 2010Winter Storm and Avalanche in Colorado, November 15 to 16, 2010
November 15 to 16, 2010 · NWS BOU · 6 events in 4 counties and zones
A winter storm brought heavy snow to the North Central Mountains of Colorado. 5 inches at Grizzly Peak and Stillwater Creek; and 10 inches near Grand Lake.
Every event with a place to put it; 6 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
- 1
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 6
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 winter storm brought heavy snow to the North Central Mountains of Colorado. Storm totals included: 19.5 inches at Columbine SNOTEL, 16.5 inches at Never Summer, 15 inches at Joe Wright, 13.5 inches at Jones Pass and Phantom Valley SNOTEL, 12 inches at the Loveland, Tower and Zirkel SNOTEL sites; 10.5 inches at Grizzly Peak and Stillwater Creek; and 10 inches near Grand Lake. Lesser amounts of 4 to 9 inches were observed elsewhere. In addition, a snowboarder was injured in an avalanche over Berthoud Pass.
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 Denver/Boulder, CO wrote its last area forecast discussion before the first event at Nov 14, 5:35 PM MST, 6 hours 25 minutes earlier.
Area forecast discussion, Nov 14, 5:35 PM MST, 6 hours 25 minutes before
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</html>Hazardous weather outlook, Nov 14, 10:55 AM MST, 13 hours 5 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER CO
1055 AM MST SUN NOV 14 2010
COZ030>051-151300-
JACKSON COUNTY BELOW 9000 FEET-WEST JACKSON AND WEST GRAND
COUNTIES ABOVE 9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000
FEET-SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-SOUTH AND SOUTHEAST
GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/GILPIN/CLEAR CREEK/
SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND
BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-JEFFERSON AND WEST
DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK
COUNTIES BELOW 9000 FEET-CENTRAL AND SOUTHEAST PARK COUNTY-LARIMER
COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-BOULDER AND JEFFERSON
COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY-NORTH DOUGLAS
COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/
EAST BROOMFIELD COUNTY-ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES
ABOVE 6000 FEET-NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD
COUNTY-MORGAN COUNTY-CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN
COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS
COUNTY-
1055 AM MST SUN NOV 14 2010
...WINTER WEATHER ADVISORY FOR THE NORTHERN MOUNTAINS MIDNIGHT
TONIGHT UNTIL MIDNIGHT MONDAY NIGHT...
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.
.DAY ONE...TODAY AND TONIGHT
OCCASIONAL LIGHT SNOW SHOWERS WILL CONTINUE ACROSS THE MOUNTAINS
THROUGH THIS EVENING...WITH ADDITIONAL SNOW ACCUMULATIONS UP TO 2
INCHES. THE MOUNTAIN SNOWFALL IS EXPECTED TO INCREASE IN INTENSITY
BY MIDNIGHT TONIGHT. THE SNOWFALL...ALONG WITH GUSTY WINDS ABOVE
TIMBERLINE...WILL PRODUCE HAZARDOUS TRAVEL IN THE HIGH COUNTRY WITH
SNOWPACKED ROADS...AREAS OF BLOWING SNOW...AND REDUCED VISIBILITIES.
ACROSS THE PLAINS...DRY CONDITIONS WILL PREVAIL.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
WITH STRONG MOIST NORTHWESTERLY FLOW ALOFT...THE MOUNTAINS CAN
EXPECTED SNOW LIKELY MONDAY INTO WEDNESDAY MORNING. A MAJOR
SNOWFALL IS NOT EXPECTED...BUT SEVERAL INCHES ARE POSSIBLE ON THE
NORTHWEST FACING SLOPES THROUGH THAT PERIOD. THE EASTERN PLAINS CAN
EXPECT A SLIGHT CHANCE OF SNOW SHOWERS WITH DRY CONDITIONS NEAR FOR
THE URBAN CORRIDOR THROUGH EARLY WEDNESDAY. WINDY CONDITIONS ARE
ALSO EXPECTED ON THE PLAINS INTO WEDNESDAY. FROM WEDNESDAY
AFTERNOON THROUGH SATURDAY...DRY CONDITIONS ARE EXPECTED OVER ALL
THE FORECAST AREA...WITH WARMING TEMPERATURES.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT...BUT ANY
REPORTS OF MOUNTAIN SNOWFALL WOULD BE APPRECIATED.
D_L/RJK
Event by event
4 winter weather, 1 winter storm, 1 avalanche. Local standard time, as filed.
Winter Weather, West Jackson & West Grand Counties Above 9000 Feet
- When
- November 15, 12:00 AM MST to 2:27 AM MST
- Where
- West Jackson & West Grand Counties Above 9000 Feet forecast zone
- Reported by
- SNOTEL
- Coordinates
- 40.385, -106.230 (the zone’s center; the record gives no point)
Winter Weather, Grand & Summit Counties Below 9000 Feet
- When
- November 15, 12:00 AM MST to November 16, 12:00 AM MST
- Where
- Grand & Summit Counties Below 9000 Feet forecast zone
- Reported by
- Mesonet
- Coordinates
- 39.869, -106.117 (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 15, 12:00 AM MST to November 16, 12:00 AM MST
- Where
- S & E Jackson / Larimer / N & Ne Grand / Nw Boulder Counties Above 9000 Feet forecast zone
- Reported by
- SNOTEL
- 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 15, 12:00 AM MST to November 16, 12:00 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)
Winter Storm, West Jackson & West Grand Counties Above 9000 Feet
- When
- November 15, 2:28 AM MST to November 16, 12:00 AM MST
- Where
- West Jackson & West Grand Counties Above 9000 Feet forecast zone
- Reported by
- SNOTEL
- Coordinates
- 40.385, -106.230 (the zone’s center; the record gives no point)
Avalanche, S & Se Grand / W Central & Sw Boulder / Gilpin / Clear Creek / Summit / N & W Park Counties Above 9000 Feet
- When
- November 16, 9:15 AM MST
- Where
- S & Se Grand / W Central & Sw Boulder / Gilpin / Clear Creek / Summit / N & W Park Counties Above 9000 Feet forecast zone
- Injuries
- 1 direct, 0 indirect
- Reported by
- State Official
- Coordinates
- 39.726, -105.675 (the zone’s center; the record gives no point)
A snowboarder was injured when he triggered an avalanche at the Nitro Chute on Berthoud Pass. He suffered a back injury when he was transported over a cliff band. The severity of his injuries was unknown.
- Winter Weather
- Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.
- Winter Storm
- A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
- Avalanche
- A mass of snow sliding down a mountainside that caused a death, an injury or damage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Winter Weather in Colorado, November 15, 201018 injured · 1 event
- High Wind and Strong Wind in Washington, November 15 to 16, 2010$485,000 · 56 kt wind · 8 events
- Dense Fog in Kentucky, November 15, 20102 injured · $50,000 · 34 events
- Damaging Winds and High Wind in Washington, November 15 to 16, 2010$201,000 · 74 kt wind · 12 events
- Damaging Winds and High Wind in Idaho, November 15 to 16, 2010$230,000 · 78 kt wind · 7 events
- High Wind in Washington, November 15 to 16, 2010$125,000 · 72 kt wind · 4 events
- High Wind in Oregon, November 15 to 16, 2010$71,000 · 64 kt wind · 7 events
- Winter Storm in Montana, November 15 to 16, 201011 events
- Damaging Winds in Alabama, November 15, 2010$15,000 · 52 kt wind · 2 events
- Winter Storm in Montana, November 15 to 20, 20106 events
- Dense Fog in Pennsylvania, November 15, 20105 events
- Heavy Snow in Wyoming, November 15, 20104 events
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: 267183, 267184, 267185, 267186, 267661, 268191.