This evening the trend in models/observations continues to be the same:
- We don’t have a “storm” coming, but maybe 18 hours in which a mix of frozen precipitation may fall for most of us in the metro area
- Any snow will be brief and light late tomorrow afternoon/evening. Your life should be affected all that much.
Since we’re getting closer to the event and models still have quite light precipitation forecast, I lowered the snow forecast slightly for the metro area:
Due to the warming air overhead tomorrow evening and light precipitation, the NWS has converted the Winter Storm Watch to just a regular Winter Weather Advisory for all areas west of the Cascades away from the Gorge outflow zone (metro area). For most of you this will be a brief freezing rain episode tomorrow evening through daybreak Friday, then you go above freezing:
I’m a bit concerned that temperatures are running relatively warm. But, just like the last event (or was it two back?) the downsloping wind off the Cascades may be adding a little bit of “warming”. Still, temperatures in the mid/upper 20s at Hood River with easterly is a bit warmer than we typically see for freezing conditions with ice/snow storms in Portland. Another reason I’m thinking this isn’t going to be that big of a deal for areas west of the Cascades.
Chief Meteorologist Mark Nelsen