Meteorologist Melissa Frey’s Forecast Discussion:
We saw the first disturbance (not big enough to call it a storm) make it into western Oregon behind this ridge of high pressure. This made for a partly cloudy Friday and even enough drizzle to give us a trace of precipitation.
Our high made it back to 49° which is one degree above average for this time of year. We’ll continue to climb to the low 50s this weekend, but then much cooler air will move into the Pacific Northwest.
The next storm that moves into western Oregon will bring winter weather with it. This storm is currently in the northern Pacific picking up plenty of moisture. From there it’ll move into northern Canada before dropping into the Pacific Northwest from the north. A set up like this gives the storm potential to bring low elevation snow.
We’ll see rain starting in western Oregon Saturday night, which will continue off and on through early Tuesday’s morning. This will initially stay as rain across the Cascades passes through late Sunday. Temperatures will start to fall Sunday night and the passes will likely see snow all day Monday and into Tuesday. The Cascades will also see high winds with this storm. It’s very possible that even the lower foothills and Coast Range could see snow. The question, which is often the case with storms like this, is whether or not there will still be any moisture available once the cold air gets to the valley. Either way, the Cascades will see significant snow starting Sunday night. The foothills and Coast range will start to see snow Monday afternoon and the valley has a chance of at least a wintry mix Monday night into Tuesday morning.
After Tuesday it’s back to dry weather and we stay that way through mid week, but it will be very cold!
Have a great weekend,
~Meteorologist Melissa Frey
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