Colder & Wetter Through the Extended Forecast

 FastCast—Tuesday, Mar. 7 to Friday, Mar. 10:

It has been a below average start to March, with consistent morning lows near freezing. This, combined with late evening showers, has brought icy spots and freezing fog to parts of the lowlands. This same trend will continue on Tuesday, with showers ending late Monday night, and lows likely near freezing. Tuesday and Wednesday look to be drier, with highs in the upper 40s and lows in the upper 20s to low 30s. Showers return late Wednesday and at times on Thursday. Expect a total of 0.1-0.4” from these combined showers, most from Everett southward. Late on Thursday, a more organized system will approach, with more widespread rain, and temperatures shifting to highs in the upper 40s to low 50s and lows in the upper 30s to low 40s by Friday. Stay tuned!

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March will continue to be on the cold side. Let’s take a look at the European model forecast for Wednesday morning’s lows (a few degrees colder than Tuesday morning).

On Wednesday morning, expect lowland lows in the upper 20s to low 30s, with colder lows in the upper teens to mid 20s in Eastern WA, with isolated spots (mainly around Spokane and northward) dropping to the low teens.

With persistent weak low pressure centers spinning just offshore, showers will continue moving through Western Washington. This is shown below, in the European model forecast for total rain through Wednesday evening.

Through Wednesday evening, expect 0.2-0.4” of rain from Everett southward, with up to 0.75” on the coast. More widespread rain will arrive with a stronger system late Thursday through Friday, so stay tuned.

The trend toward more rain is seen below in the NWS Climate Prediction Center outlook below, for precipitation probabilities from March 12-16.

Generally, there is a 40-60% probability of above average precipitation for WA through mid-March, with an 80-90% probability of above average precipitation for weather-weary California. More flooding and massive snowfall will likely be in the upcoming headlines for the Golden State.

Next, the CPC outlook for temperatures, also for March 12-16.

The entire Pacific Northwest has a 40-50% probability of below average temperatures through mid-March. For the lowlands, extended forecasts show temperatures having a hard time getting out of the upper 40s to low 50s. 

Stay tuned, as an active March will continue across the West!