Thursday, January 21st, 3:00 A.M.
An area of low pressure is developing west of British Columbia. A warm front associated with it is pushing light showers over northwest Oregon and southwest Washington. This system will keep clouds overhead today, with a few lights showers / areas of drizzle. The wettest conditions will occur along the coast, the Coast Range and the Cascade foothills. The interior valleys should experience dry moments with high temperatures rising into the mid to upper 40s.
The aforementioned low pressure system will drop southward along the West Coast over the next 24 hours. As it moves south of our region on Friday, our skies will gradually clear out. Expect a chilly start with temperatures in the mid 30s. Increasing sunshine will bump temperatures into the mid to upper 40s. Saturday also looks dry and sunny, but due to a dry and clear overnight, Saturday morning will likely start off with areas of freezing fog and temperatures in the upper 20s and 30s.
Clouds will build in Saturday evening as another Pacific system approaches from the northwest. Temperatures are likely to cool into the 30s ahead of that system, so a mix of rain and snow is still in the forecast for Sunday morning. However, all indications point to valley temperatures staying just above freezing. This doesn’t mean you won’t see snowflakes in the air, but it will be difficult for any snow to stick at sea level. The best chance for minor snow accumulations will be above 1,000 feet. A few mixed showers will be possible Sunday night and early Monday before we briefly dry out. Our next chance for showers could arrive around Tuesday.
Have a great Thursday!