- Winter started late in many areas with warm/dry weather through most of November and early December.
- December ended strong in the Sierra and across the Intermountain West with a few moderate to strong atmospheric river (AR) setups.
- These AR’s hit parts of Colorado hard including above normal snowfall (100″) in Crested Butte.
- Then the storm track changed and the flow dried up.
- April delivered one last surge of snow to many places that were in desperate need.
- April also brought a 100-150mph jet stream that followed La Nina architecture and sat over the Intermountain West for 3 weeks. Abnormally strong winds prevailed.
Forecast vs Reality
Here is the Winter forecast I published in August/September 2021.
Here are the preliminary season totals for comparison.
There were hits and misses. A few highlights:
- Hit: Below normal snowfall Sierra Mountains
- Hit: Below normal snowfall Colorado’s Southern Mountains
- Hit & Miss: Normal snowfall across parts (not all) of Colorado’s Central and Northern Mountains
- Hit: Above normal snowfall across parts of the PNW
- Miss: I predicted normal snowfall across the Wasatch
- Worst Miss: I predicted above normal snowfall in the Tetons
- Miss: I predicted normal snowfall across Colorado’s Front Range ski areas
A few specifics, snowfall in inches:
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