Snow chance for Colorado, Wyoming, Montana

Tomer’s Take:

  • A strong late-season dip in the jet stream could deliver snow 5/19-5/20 to MT, WY, and CO.
  • Snow levels fall significantly to the valley floor in some locations. Frost/Freeze is also possible.
  • Forecast atmospheric pressure anomalies could run 2-3 standard deviations from the 30-year average.
  • Strong wind 30-80mph ahead of this storm system.

I took the skis out on Saturday near Torreys Peak in Colorado. It was a beautiful day and snow was melting quickly.


Current Setup

Infrared satellite shows the storm track and strong low pressure system pulling out of the Gulf of Alaska.

Infrared satellite 5/16/2022 5am.

Late Season Anomaly

Below, this is a robust storm system and important by May standards. Forecast atmospheric pressure anomalies run 2-3 standard deviations from the 30-year averages.

Forecast atmospheric pressure anomalies valid 5/20/2022, GFS interpretation.

Forecast Wind Gusts

Gust (MPH)5/175/185/195/20
Crestone Peak35407045
Quandary Peak25356035
Mount Sneffels35355055
Kings Peak30306040
Wheeler Peak30355555
Grand Teton30406535

Snow Forecast


Inches of total snow 5/16-5/25.

2 thoughts on “Snow chance for Colorado, Wyoming, Montana

  1. Terry

    We’re leaving tomorrow morning (Tuesday) for Yellowstone from the Vail area. Will we hit snow? What is the snow forecast around YS park? Thanks!

    1. christomer Post author

      Hi Terry – yes, it looks like you’ll run into some snow on Thursday and Friday, especially as you get closer to the MT state line. Air temps turn colder on Thursday along with gusty wind. 20s and 30s on Friday and Saturday morning.

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