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7 DAY FORECAST
HOURLY
34
Overcast
Sunday-
Showers
38
25
50%
38
25
Showers
Precipitation50%
Wind15mph NNW
Humidity60%
UVLow
Monday-
Sunny/Wind
38
24
0%
38
24
Sunny/Wind
Precipitation0%
Wind8mph N
Humidity46%
UVLow
Tuesday-
Mostly Cloudy
40
25
20%
40
25
Mostly Cloudy
Precipitation20%
Wind4mph SSE
Humidity45%
UVLow
Wednesday-
Mostly Cloudy
42
30
10%
42
30
Mostly Cloudy
Precipitation10%
Wind2mph SE
Humidity46%
UVLow
Thursday-
AM Clouds/PM Sun
43
30
10%
43
30
AM Clouds/PM Sun
Precipitation10%
Wind6mph NE
Humidity55%
UVLow
Friday-
PM Showers
43
36
40%
43
36
PM Showers
Precipitation40%
Wind11mph S
Humidity67%
UVLow
Saturday-
Mostly Cloudy
45
36
20%
45
36
Mostly Cloudy
Precipitation20%
Wind6mph S
Humidity73%
UVLow
RIGHT NOW
Precipitation80%
Wind16mph S
Humidity93%
UVLow
Visibility5 miles
38
50%
38
40%
38
30%
38
20%
38
10%
38
10%
38
10%
38
10%
38
10%
38
20%
38
20%
38
10%

Latest Weathercast

WEATHERCAST

Interactive Radar

Radar

Latest Forecast


Updated Sunday 8:40 a.m.

The weekend weather pattern has rapidly shifted from warm and windy to cool and wintry, leaving some communities buried under several inches of snow.

A Convergence Zone that stalled over northern Snohomish County and parts of Island County brought over 4 inches of snow as of early Sunday morning to areas such as Granite Falls, Marysville and Arlington. As much as 8-9 inches of snow could fall there before the zone fizzles. A Winter Storm Warning remains in effect for Everett and the northern half of Snohomish County until noon for another 1-3 inches on top of what's already fallen.

The area around Port Angeles and Sequim were also getting more than a few inches of snow as cold air runs into the Olympic Mountains and creates a localized snow belt.

Light snow was falling in several other areas, but accumulations were expected to remain relatively light, with a Trace to 2" as a general rule, maybe three inches in spots as a cold trough of low pressure swings by offshore to our south then heads inland around Portland later in the morning. Snow will taper off from north to south as the day progresses.

Winter Weather Advisories remain in effect until late morning for the areas north of Everett and the Olympic Peninsula until noon, while they remain in effect until 4 p.m. In the South Sound and Southwestern Washington as the low slides by there later this afternoon. The greater Seattle-Bellevue-Bremerton area was one of the snow losers, with moisture being blocked by the Olympic Mountains.

Meanwhile, dry arctic air has begun blowing into Western Washington via the Fraser River Valley. Northeast winds gusted as high as 48 mph early Sunday morning with gusts as high as 50-55 mph continuing there through the day. Wind Advisories are in effect for Whatcom County and the San Juan Islands through 10 p.m., as temperatures hover in the 20s to low 30s there.

That strong north wind will eventually spread to the south on Sunday, bringing gusts to 25-40 mph in the Puget Sound region and, as mentioned, up to 50-55 mph near the Fraser River outflow.

The north wind is somewhat unusual and can cause damage at lower speeds because our trees are more accustomed to southerly winds. Strong north winds could also force the closure of the westbound lanes of the I-90 Floating Bridge.

Snow showers will taper off by the afternoon and we'll see clearing from the north as temperatures begin to fall. Sunday night into Monday morning will be clearing but cold with breezy north winds. Lows will drop into the teens to mid 20s around Seattle, with wind chills in the teens to single digits in the windier spots.

Monday will be sunny but cold and breezy with north winds continuing. Any snow on the roads will have frozen and icy roads are a concern for Monday morning. Highs will be in the 30s.

The north wind will taper off Monday evening, leaving another clear and cold night that will be a few degrees colder than Sunday night, dropping again into the teens to low 20s. Dry weather continues Tuesday.

Another chance of light snow returns for mid week on Wednesday, with a lull on Thursday and then perhaps more dances with low snow levels amid weak weather systems on Friday into the weekend, although none of these look like significant snow producers.

Scott Sistek
KOMONews.com Meteorologist
Follow me on Twitter @ScottSKOMO and on Facebook at Scott Sistek KOMO


SUNRISE
07:09:32 am
SUNSET
05:37:49 pm

Today's Record Temperatures

Record High62
F
Record Low20
F