METEOROLOGIST MELISSA FREY’S FORECAST DISCUSSION:
Thanks to a large ridge of high pressure we continued to stay under clear skies, but this time of year clear nights also mean cold nights, fog and frost. Temperatures dropped to just 20 degrees in Eugene Thursday morning. This is the second day we’ve been in the 20s and is now the coldest we’ve been since January 16th of 2012.
Also for the second night in a row, the chilly night also allowed fog to form in the valley, which in some places also froze onto roadways. This fog is blocking the sunshine for the valley and high temperatures are going to struggle to get out of the 30s.
Tonight will not be quite as cold as this ridge of high pressure starts to move east. We’ll see a weak from move in Thursday night that will bring in a few clouds and a few light showers. Overnight lows will drop to near freezing.
The areas that see rain, while still below freezing my see a brief period of freezing rain. The chances for this are best in the northern Oregon Cascades below 4,000 feet.
It’ll be back to dry weather Friday as another ridge of high pressure moves in. Highs will stay in the 40s but lows will likely be back to the upper 20s and low 30s.
Over the weekend we could see a few showers late Saturday and early Sunday. Highs will stay in the mid 40s with overnight lows in the mid 30s.
-Meteorologist Melissa Frey
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