Skies are trying to clear out tonight, and eventually they will towards morning. So another chilly night, some mid teens to lower 20s in the metro area.
But it appears that Saturday night will give us a perfect meteorological setup for the coldest night for most of us since 1998, maybe since 1990 in some spots.
1. Clear sky
2. Coldest air mass in at least 4 years
3. Low dewpoints = very dry air
4. Perfectly calm wind just above everywhere as east wind disappears in the Gorge.
5. Snow cover in some spots, especially Vancouver and then south of Salem.
Everything is just coming together just right for extreme cold. Here are the temps I expect in our area. Due to calm wind, I think PDX (airport) shouldn’t have any problem dropping quite low like much of the metro area. In the past, PDX has often had trouble getting extremely cold because many times during a cold spell at least some east wind is blowing…stirring up the air just enough to take the edge off the cold.
Bend sat around 10 degrees all day long with heavy snow at times. When that frigid airmass dries out enough for clear skies tomorrow night, the snow cover will allow those temps to REALLY drop!
By the way, the last time PDX hit 10 degrees (or colder) was a 9 degree reading on February 5th, 1989…23 years! During the 2009 cold wave we hit 12, 13, & 14.
Eugene last went below 10 degrees in 2009, below 5 degrees in December, 1990. And the last time it went below zero at Eugene was during the cold spell in December 1972. It dropped to -12!
Stay warm this weekend!
Here are the snow totals today…for archive purposes (next fall’s winter weather meeting)
Chief Meteorologist Mark Nelsen