12/21/25 Sunday 5:30 am
GFS Goes LARGE ❄️📏
But first, let’s look at the European model. Again, we are only looking at liquid equivalent precipitation.
European
GFS
FYI, that light colored area inside the brown is over 7 inches of liquid.
The DWG Bottom Line
While the latest model runs look promising, the real story will be the storm track. We desperately need the moisture, and our local resorts definitely need snow.
- The most significant shift in the last 24 hours has been a notable increase in projected totals through next Friday night.
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GFS Model: Currently showing a “perfect” setup with strong Southwest flow. However, it carries a warm bias that could initially bring rain to lower elevations, with snow levels starting at or above 9,000 feet. A following cold front a few days later looks to deliver a second punch of snow just in time for New Year’s.
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European & Canadian Models: Both are currently playing catch-up to the GFS. We’ll need another 48 hours for the Canadian model to fully capture the scope of this system, as it only looks 10 days out.
- Looking Ahead: The moisture is set to start arriving in Northern California today. It will take a couple of days to move down the Coast. It should hit Southern California midweek. That will be when the models get their best read of the situation. I will be posting at least daily as we get closer to midweek!