Extreme surface pressure, much colder temperatures and the possibility of snowfall in the lowlands
The forecast for the next few days will be cold, especially east of the Cascades.
But there are two side effects of cold: very high surface pressure/sea level and the possibility of snow in the lowlands.
In the second segment of the podcast, I note the extreme pressure moving down east of the Rockies, east of WA, we get a “piece” of high pressure action (see water level pressure forecast signs for next Thursday are shown below). 1054 hPa!
But as noted in the podcast, the impressively high pressure doesn’t beat the US record (1064 hPa in 1983).
My podcast starts with the forecast. The big action this weekend will come late Saturday and Sunday as a cold front moves south over Washington State. There is both rain and sleet, the former predominating near sea level.
Total snowfall for the 24 hours ending 4 p.m. Sunday is shown below. The lowest part of the snow will be in Northwest WA, where the cool air blowing out of the Fraser River Valley is critical.
There’s another chance for snow on Tuesday–more on that in the podcast.
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