THE SNOW HAS ARRIVED......

Seattle: Winter's Worth of Snow in One Day

By Kristina Pydynowski, Senior Meteorologist

Jan 18, 2012; 5:00 AM ET


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A Washington Department of Transportation web camera captured this snowy scene on Interstate 5 in Olympia earlier this morning.
Schools are closed and a nightmare awaits commuters in Seattle today with a storm dumping a winter's worth of snow in less than 24 hours.
Snow that began whitening Portland late on Tuesday evening spent the overnight hours spreading northward along Interstate 5 to Seattle.
While the snow will transition to soaking rain by late morning in Portland, the same will not happen in Seattle.
The snow in Seattle will instead persist through this evening with totals averaging around 6 inches, the equivalent of what the city typically receives during an entire winter.
The heaviest totals will be measured toward the Seattle-Tacoma International Airport with lesser amounts in the city's northern suburbs.
By taking a slightly more southern track into the Northwest than previously expected, the storm will likely fall short of rivaling the November 1985 snowstorm that dropped 7.6 inches on Seattle.
Regardless, the storm will not fail in causing disruptions to travel and daily routines.

A larger version of this map is available on AccuWeather.com's Winter Weather Center.
KING-TV reports that public schools throughout Seattle are closed. Motorists will be faced with snowcovered and slick roadways, while airline passengers should prepare for flight delays and cancellations.
An even worse nightmare awaits those planning to pass through the Cascades and on Interstate 5 in between Seattle and Portland.
Snow totals will approach a foot in Tacoma and Olympia through this evening. The snow will not only clog roadways, but will be difficult to shovel due to its heavy and wet nature.
"In the mountains, a yard or more of snow will fall in the high country," stated AccuWeather.com Expert Senior Meteorologist Alex Sosnowski. The stage is also set for possible avalanches.
I-90's Snoqualmie Pass lies in the avalanche threat zone, prompting officials to occasionally stop traffic through the pass early this morning for avalanche control work, according to the Washington Department of Transportation.
Motorists traveling eastward on I-90 will not be greeted with improving weather after exiting Snoqualmie Pass. Substantial snow is also unfolding across the Northwest's interior, according to AccuWeather.com Western Expert Meteorologist Ken Clark.
The storm barreling into the Northwest today will depart tonight with the Northeast as its final destination. A seemingly endless train of Pacific storms into the Northwest will follow through next week.
The impending Pacific storms are expected to be warmer than the current system, meaning rain not snow is in the forecast for Seattle and the other lower elevations of western Washington. Today's snow will also melt, heightening the risk of urban and poor drainage flooding.

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