Computer models all show the storm developing over the North Pacific on Monday and moving over to Southcentral, said Bob Clay, lead forecaster with the National Weather Service in Anchorage.
Prince William Sound and the Susitna Valley likely will get a big dump of snow, the Weather Service said in an advisory.
Valdez, though on the water, will probably stay cold enough for snow though it's hard to make precise predictions by city a couple days out, Clay said. Anchorage, for instance might get more snow, or the precipitation could start as snow and turn to rain.
"We can see the large picture and we can see the potential for hazardous weather," Clay said Sunday evening. "As we get closer we can better fine tune the details."
If the winds blow hard enough, Portage Valley and Eastern Turnagain Arm could see blizzard conditions, the Weather Service said.
Decent snowfall and cold weather so far in November have delighted Anchorage cross country skiers. A chinook wind could mess up the groomed ski trails.
So far this month Anchorage has received 31.4 inches of snow at Stevens International Airport, according to the Weather Service. Another 7.5 inches would break the record for the month, set in 1994.
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