Chapman Tunnel SNOTEL

10,090 ftPitkin County, ColoradoNRCS site 1101Updated Thu Oct 22, 7:00 PM MDT

SWE0.1″20% of median
Depth0″0″ 48 h
Temp40°29°–50° 48 h
Thu 22Past 48 hSnow water equivalent0.1″ now-0.500.50.1″Snow depth0″ now-0.500.50″Air temperature40°F now40°32°40°FNow · Thu 7 PM
ThuPast 48 hSnow water equivalent0.1″ now-0.500.50.1″Snow depth0″ now-0.500.50″Air temperature40°F now40°32°40°FNow · Thu 7 PM
Sat 17Sun 18Mon 19Tue 20Wed 21Past 7 daysSnow water equivalent0.1″ now-0.500.50.1″Snow depth0″ now00″Air temperature40°F now25°50°32°40°FNow · Thu 7 PM
SatSunMonTueWedPast 7 daysSnow water equivalent0.1″ now-0.500.50.1″Snow depth0″ now00″Air temperature40°F now25°50°32°40°FNow · Thu 7 PM
0″5″10″15″OctNovDecJanFebMarAprMayJunJulMedian peak 15.4″ · Apr 190.1″ today · 20% of median
0″10″ONDJFMAMJJMedian peak 15.4″ · Apr 190.1″ today · 20% of median
<50%50–6970–8990–109110–129130–149150%+
0″2″8″16″32″+
0″6″24″48″100″+
Map
Open in the Vertex map

Next 3 days

The forecast for this station is on its way.

16-day outlook, three models

Snowpack vs. median

20%of the 1991–2020 median for today

0.1″ of water today against a median of 0.5″, 80% below median. The median peak is 15.4″ around April 19.

Nearby SNOTEL stations

All Colorado
StationElevationDepth, 7 daysSWE% medianDepth48 h
Nast LakeCO · 3 mi8,710 ft——0″0″
KilnCO · 4 mi9,610 ft0.0″—0″0″
IvanhoeCO · 5 mi10,540 ft0.2″50%0″—
BrumleyCO · 13 mi10,570 ft0.2″200%0″0″
Independence PassCO · 13 mi10,570 ft0.3″75%——
Upper TaylorCO · 20 mi10,710 ft0.4″—0″0″
Castle PeakCO · 21 mi11,510 ft0.5″—0″0″
Mccoy ParkCO · 24 mi9,500 ft0.0″—1″0″

Station details

Elevation
10,090 ft
Location
39.2621°N, 106.6294°W
County
Pitkin County, Colorado
Basin
Roaring Fork · HUC 14010004
Network
NRCS SNOTEL · site 1101
Station ID
1101:CO:SNTL · SHEF HAPC2
Reporting since
September 2007
NWS forecast office
Grand Junction (GJT) discussion

Questions

What is snow water equivalent (SWE)?

SWE is the depth of water you would get by melting the whole snowpack. Fresh powder is often 5 to 10% water; old spring snow can be 40% or more.

How often does Chapman Tunnel SNOTEL update?

The station reports every hour by radio telemetry to the USDA Natural Resources Conservation Service. This page refreshes each hour. Readings are provisional until NRCS quality control.

What does “% of median” mean?

It compares today’s SWE with the 1991–2020 median for the same calendar day at this station. Above 100% means more water in the snowpack than on a typical year’s same date.

Where is Chapman Tunnel SNOTEL?

At 10,090 ft in Pitkin County, Colorado (39.2621°N, 106.6294°W), in the Roaring Fork basin.

How is the snow forecast made?

Vertex runs the HRRR, RRFS and GFS weather models at the station’s own elevation and carries the measured snowpack forward hour by hour. Treat it as guidance, and check your avalanche center’s forecast before heading out.