A change in weather pattern starting around Dec 18 as hinted by Nov SOI Spikes brought numerous Atmospheric Rivers events with abundant precipitation to parts of the West. Too much rain in some areas. Locally, warm temps allowed this moisture to fall as rain rather than snow except in higher elevations around Idaho. Water year to date precip is near normal across most of the state. Snowpacks are near record low in lower elevations and increase in higher elevations. Smiley Mountain snow, in the Big Lost Basin, is 171% of normal. Here’s a summary explaining the abundant moisture and influence of temps on snowfall across central Idaho.