Promontory SNOTEL

7,930 ftCoconino County, ArizonaNRCS site 705Updated Fri Oct 16, 3:00 AM MST

Last peak2.1″SWE · Feb 21
Depth0″snow-free since Feb 26
Temp37°32°–48° 48 h
Thu 15Past 48 hAir temperature37°F now30°40°50°32°37°FNow · Fri 3 AM
ThuPast 48 hAir temperature37°F now30°40°50°32°37°FNow · Fri 3 AM
Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Past 7 daysAir temperature37°F now40°60°32°37°FNow · Fri 3 AM
SatSunMonTueWedPast 7 daysAir temperature37°F now40°60°32°37°FNow · Fri 3 AM
0″5″10″OctNovDecJanFebMarAprMayJunJul
0″5″10″ONDJFMAMJJ
<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

Last season

2.1″peak snow water equivalent

Last season peaked at 2.1″ of water, 17% of the median peak.

Nearby SNOTEL stations

All Arizona

Station details

Elevation
7,930 ft
Location
34.3685°N, 111.0109°W
County
Coconino County, Arizona
Basin
Middle Little Colorado · HUC 15020008
Network
NRCS SNOTEL · site 705
Station ID
705:AZ:SNTL · SHEF PROA3
Reporting since
October 1979
NWS forecast office
Flagstaff (FGZ) 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 Promontory 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 Promontory SNOTEL?

At 7,930 ft in Coconino County, Arizona (34.3685°N, 111.0109°W), in the Middle Little Colorado 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.