Rather than continuing to clog up the PNW regional thread with my weather panic posts, I’ll start putting them here. I’m panicking!
The latest GFS run has gone even colder for even longer. Here are the overnight lows shown in the sounding for my GPS coordinates in the 12z GFS (which just finished running), and the highs on some of these days are below 20°F even:
| Date | Low (°F) |
|---|---|
| Jan 12 | 16 |
| Jan 13 | 12 |
| Jan 14 | 7 |
| Jan 15 | 9 |
| Jan 16 | 10 |
| Jan 17 | 15 |
| Jan 18 | 13 |
And it doesn’t even end then, it shows that cold pattern lingering basically until the end of the forecast range in late January.
Yikes! Here’s the map for the worst morning (14th), which shows the potential for cold records way down in CA and beyond:
