If you live south of Salem in the Willamette Valley, expect some areas of ice on roads tomorrow morning. That’s because rain will arrive around daybreak, especially from Albany to Eugene. It will be cold enough in some spots (not all areas) to allow the liquid rain to freeze into a glaze.
Here are my latest thoughts as of 5pm Sunday…
- Most of our models are dry in the Portland Metro area all day Monday, keeping all (or almost all) of the rain even south of Salem.
- A couple generate very light sprinkles overhead in the morning hours for us. It may or may not be below freezing at that time.
- Much better chance for brief freezing rain from Albany through Corvallis/Eugene around daybreak.
As a result, the NWS has a Freezing Rain advisory for only the central/southern Willamette Valley, not the metro area, for Monday morning. Even down there it’s possible the freezing on roadways will be real spotty.
Right now I’d assign these chances to Freezing Rain (ice glazing on roads) affecting the morning commute:
There is one more evening run of the models which should help us either totally eliminate any precipitation in the metro area or not.
Chief Meteorologist Mark Nelsen