Kirwin SNOTEL

9,580 ftPark County, WyomingNRCS site 560Updated Thu Oct 22, 7:00 PM MDT

SWE0.1″8% of median
Depth0″0″ 48 h
Temp41°31°–49° 48 h
Thu 22Past 48 hSnow water equivalent0.1″ now-0.500.50.1″Snow depth0″ now-0.500.50″Air temperature41°F now40°32°41°FNow · Thu 7 PM
ThuPast 48 hSnow water equivalent0.1″ now-0.500.50.1″Snow depth0″ now-0.500.50″Air temperature41°F now40°32°41°FNow · Thu 7 PM
Sat 17Sun 18Mon 19Tue 20Wed 21Past 7 daysSnow water equivalent0.1″ now-0.500.50.1″Snow depth0″ now-0.500.50″Air temperature41°F now20°40°32°41°FNow · Thu 7 PM
SatSunMonTueWedPast 7 daysSnow water equivalent0.1″ now-0.500.50.1″Snow depth0″ now-0.500.50″Air temperature41°F now20°40°32°41°FNow · Thu 7 PM
0″5″10″OctNovDecJanFebMarAprMayJunJulMedian peak 13.2″ · May 10.1″ today · 8% of median
0″5″10″ONDJFMAMJJMedian peak 13.2″ · May 10.1″ today · 8% 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

8%of the 1991–2020 median for today

0.1″ of water today against a median of 1.2″, 92% below median. The median peak is 13.2″ around May 1.

Nearby SNOTEL stations

All Wyoming
StationElevationDepth, 7 daysSWE% medianDepth48 h
Castle CreekWY · 13 mi8,410 ft0.0″———
Timber CreekWY · 14 mi7,910 ft0.0″0%0″0″
Burroughs CreekWY · 21 mi8,760 ft0.2″—0″0″
Owl CreekWY · 21 mi8,990 ft0.1″25%0″0″
Younts PeakWY · 25 mi8,340 ft0.3″43%0″−1″
MarquetteWY · 31 mi8,800 ft0.1″14%0″0″
Little WarmWY · 33 mi9,370 ft0.0″0%0″0″
Togwotee PassWY · 38 mi9,590 ft0.0″0%0″0″

Station details

Elevation
9,580 ft
Location
43.8607°N, 109.3216°W
County
Park County, Wyoming
Basin
Greybull · HUC 10080009
Network
NRCS SNOTEL · site 560
Station ID
560:WY:SNTL · SHEF KRWW4
Reporting since
October 1979
NWS forecast office
Riverton (RIW) 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 Kirwin 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 Kirwin SNOTEL?

At 9,580 ft in Park County, Wyoming (43.8607°N, 109.3216°W), in the Greybull 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.