Happy Holidays everyone. Interesting setup for this afternoon/tonight that has developed basically out of thin air... Seems like that's how it works around here. Anyway there is a low pressure "shortwave" swinging over the reigon this afternoon and areas east of the Cascades are getting pounded with snow. But will any of that make it westside? That's where the surprise comes in... Colder air is wrapping around the low, and temps are dropping across the area (specifically east metro). Now here's where it's interesting... According to the 12z WRF, (another update will be forthcoming following all 18z model data) by 5-7pm 925 mb temps are projected to drop to at or below 0c. Steady precip during that same time MAY allow for cooling of the atmopshere and for snow levels to drop rapidly this afternoon. I'm going to update this in the next hour or so, but here's the 12z WRF images I referenced...
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| 12z WRF-GFS 4km Precip Map for 4pm |
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| 12z WRF-GFS 4km 925mb Temps for 4pm. Notice the light easterly flow as well |
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