Upper San Juan SNOTEL

10,140 ftMineral County, ColoradoNRCS site 840Updated Fri Oct 16, 4:00 AM MDT

SWE0.1″no median
Depth0″— 48 h
Temp35°23°–44° 48 h
Thu 15Past 48 hSnow water equivalent0.1″ now010.1″Snow depth0″ now050″Air temperature35°F now20°40°32°35°FNow · Fri 4 AM
ThuPast 48 hSnow water equivalent0.1″ now010.1″Snow depth0″ now050″Air temperature35°F now20°40°32°35°FNow · Fri 4 AM
Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Past 7 daysSnow water equivalent0.1″ now010.1″Snow depth0″ now050″Air temperature35°F now25°50°32°35°FNow · Fri 4 AM
SatSunMonTueWedThuPast 7 daysSnow water equivalent0.1″ now010.1″Snow depth0″ now050″Air temperature35°F now25°50°32°35°FNow · Fri 4 AM
0″10″20″30″OctNovDecJanFebMarAprMayJunJulMedian peak 29.7″ · Apr 90.1″ today
0″20″ONDJFMAMJJMedian peak 29.7″ · Apr 90.1″ today
<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

—%of the 1991–2020 median for today

Nearby SNOTEL stations

All Colorado
StationElevationDepth, 7 daysSWE% medianDepth48 h
Wolf Creek SummitCO · 2 mi10,930 ft1.1″550%2″+2″
Elwood PassCO · 12 mi11,680 ft1.5″—4″+2″
Middle CreekCO · 14 mi11,260 ft2.1″—4″+1″
GraybackCO · 16 mi11,620 ft0.2″—1″+1″
Lily PondCO · 17 mi11,070 ft0.0″—0″—
Weminuche CreekCO · 27 mi10,730 ft0.0″—0″−1″
Upper Rio GrandeCO · 28 mi9,370 ft0.0″—0″0″
Rat CreekCO · 32 mi11,680 ft2.1″—5″+1″

Station details

Elevation
10,140 ft
Location
37.4856°N, 106.8353°W
County
Mineral County, Colorado
Basin
Upper San Juan · HUC 14080101
Network
NRCS SNOTEL · site 840
Station ID
840:CO:SNTL · SHEF USJC2
Reporting since
October 1978
NWS forecast office
Pueblo (PUB) 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 Upper San Juan 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 Upper San Juan SNOTEL?

At 10,140 ft in Mineral County, Colorado (37.4856°N, 106.8353°W), in the Upper San Juan 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.