Updated Tuesday 11:15 p.m.
We've got one more hard freeze tonight which is setting us up for our next bout with snow on Thursday.
Under mostly clear skies, temperatures will again fall into the 20s for another hard freeze. It will be windy in the foothill areas susceptible to an east wind (Enumclaw, Bonney Lake, North Bend, Gold Bar, Black Diamond, etc.) for east winds gusting as high as 40-45 mph tonight. A Wind Advisory is in effect from 9 p.m. Wednesday to 4 a.m Thursday.
It's now looking like the snow will hold off until Thursday evening-Thursday night for the metro area. The morning will be cold and frosty with sunshine early then increasing clouds through the midday with temperatures in the mid-upper 30s. Morning commute will be icy but snow free.
The warm front, which is now coming in a bit slower and weaker, is expected to bring snow to the far South Sound in the mid-late afternoon, slowly spreading into the Puget Sound area sometime around or just after 7 p.m., moving north from there. Thus, it looks like at least in the Seattle-Tacoma-Everett area, we'll be able to get in a regular school day before the snow arrives, and the evening commute should be a wrap before the snow flies, too. The various forecasting models in play, including the fairly reliable European version, are trending 'later and lighter' on the incoming snow. So with the late arrival, what kind of totals are we expecting?
Current projections continue to have the Puget Sound region in the 1-3 inch range -- so not a ton of snow, but whatever falls should stick. Some areas are expected to get a little more; some a bit less. Count on most of the Seattle area being on the lower end of that range, with 3" being the exception rather than the rule.
- A Winter Weather Advisory has been issued for the greater Seattle/Puget Sound Metro area (including Tacoma, Bellevue and Everett areas), Southwestern Washington, Kitsap Peninsula, Skagit County, and Clallam County from 4 p.m. Thursday through 8 a.m. Friday for possibly 1-3 inches of snow.
- A Winter Storm Warning has been issued for the Hood Canal area snowbelt (Brinnon/Quilcene to Hoodsport along US 101, including Seabeck and, to a lesser extent, Shelton) for as much as 4-6 inches of snow (same time frame) as easterly wind crashes into the eastern slopes of the Olympic Mountains, creating its own snow engine.
- An extended Winter Weather Advisory is in effect for the Whatcom County until noon Friday for snow hanging on a bit longer with the Fraser River winds. Spots of freezing rain are also possible here Friday morning.
It appears the place with the least chances for snow are along the coast, and the Cascade foothills near the east winds where the dry wind will eat up some of the moisture, leaving you more toward the Trace-1" range of expectations. This area, especially along I-90, also has potential to get a little freezing rain toward Friday morning as well.
While the snow total projections have come down a little, it's important to note that what precipitation falls is still expected to be snow. There is still high confidence that air mass will remain cold enough to support snow. The main uncertainty now is timing and amount of moisture.
By late Friday morning we should be all be back to just scattered rain showers with perhaps some straggling wintry mix near Whatcom County until the midday or evening. Temperatures will eventually reach the low 40s.
Saturday will be mostly cloudy with just a few isolated showers with highs again in the low 40s. A bit more showery weather return on Sunday with again highs in the low 40s.
We kick off next week dry and sunny. It'll be chilly again but at this point it's not looking quite as chilly as current conditions with highs in the low 40s and lows in the mid 20s to near 30. Our next weather system approaches Wednesday and could present renewed challenges of how the precipitatioin begins, although at this point it doesn't look as cold as we are now so snow potential is more uncertain and less likely.
We'll of course be providing frequent updates here tomorrow as the snow approaches.
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Today's Record Temperatures