From Snow Storm to Ice Storm in Seattle Area...

After receiving a full season's worth of snow in one day yesterday, the Seattle area is now socked in with a significant ice storm at this hour.

An Ice Storm Warning is in effect across much of the region, as shown by the purple shaded area on the image below:

Over 120,000 customers are currently without power across the Seattle metro area, and the governor has declared a state of emergency across the region.

Periods of freezing rain and snow will continue throughout the afternoon, with up to one-half inch of glazed ice accumulation possible.  As you can imagine, the heavy glazing of ice over the existing snow cover is causing all sorts of problems.  Needless to say, travel is highly discouraged (and downright dangerous).

Precipitation will likely change back over to a mixture of snow and rain by early tonight, and then to all rain by Friday morning.  Rain may be heavy at times Friday and Saturday, with widespread amounts of 3-5 inches likely:

Add melting snow into the equation, and there will be a significant threat of low-land and small stream flooding throughout the weekend.

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