Early Monday morning, a convergence zone has showers falling from Port Townsend to about Pierce County.
We have slushy snow on the ground on I-405 and mainly places around Seattle east. That convergence zone will be around through the morning but it will continue to get weaker and weaker.
We will see mainly no or very light to minor accumulation of slushy stuff especially east of I-5 and on higher hills. Foothill locations could see around an inch of snow or slushy snow as the showers decrease.
As the convergence zone weakens, it will probably push some showers south and we could see some flurries or mixed showers, but the afternoon will be more dry than wet. Highs will be in the upper 30s and lower 40s.
Colder air arrives and we dry out a bit Tuesday with some more sunshine with morning lows near freezing and highs only near or just over 40.
Even colder air comes in Wednesday through the end of the work week. From mid-week on, the forecast picture is very uncertain except we know we’ll have the coldest days of the season so far.
The forecast will change, and we will need to watch details closely as we could have the pendulum swing toward truly brutal cold and dry weather or toward a somewhat warmer weather pattern (still cold) but with significant snow threat.
Forecast models are all over the place and an accurate forecast beyond Tuesday is impossible, despite it being just a few days away. It all depends on how far north or south an area low pressure goes on Thursday. If it’s farther south, we’re much drier and very cold. If it goes north, snow will be come a concern.
Right now, it looks like daytime highs will be in the 30s starting Wednesday with lows in the 20s, lasting until next weekend, when a modest warmup is expected.
Cox Media Group