National Weather Service sets winter storm watch amid wind warning

December 17, 2012

By Warren Kagarise

NEW — 10 a.m. Dec. 17, 2012

Issaquah is under a winter storm watch, as high winds continue to batter Western Washington and more snow is forecast to fall in the mountains.

National Weather Service meteorologists in Seattle issued a winter storm watch for much of Western Washington from Monday evening through Tuesday evening. The watch means favorable conditions exist for winter weather.

Meteorologists said a Puget Sound convergence zone should develop later Monday and persist through at least Tuesday morning. Precipitation through Tuesday morning could likely come as snow.

In Issaquah, rain is expected to turn to snow after 10 p.m. Monday. The snow level is expected to drop from 700 feet to 200 feet. Snow accumulation of less than 1 inch is possible. The chance of precipitation is 70 percent.

Snow is possible before 10 a.m. Tuesday, followed by a chance of rain between 10 a.m. and 4 p.m. The snow level is expected to reach 300 feet. Snow accumulation of less than a half inch is possible. The chance of precipitation is 50 percent.

Snow accumulation of less than a half inch is possible Tuesday night. The chance of precipitation is 100 percent.

Meanwhile, Western Washington is under a high wind warning. Under a high wind warning, damaging wind is occurring or imminent.

Forecasters predicted southwest winds rising to 25 to 35 mph, with gusts up to 60 mph. Expect winds 15 to 30 mph, with gusts near 40 mph by midday Monday.

Motorists could see downed trees, downed power lines, signal outages and standing water.

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