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Winter weather advisory possible for weekend snow

UPDATED: Fri., Feb. 21, 2014, 5:29 p.m.

Snow should be falling across the Inland Northwest starting Saturday night and continuing through the day on Sunday and possibly Sunday night.

Spokane could see 2 to 5 inches of snow through the day Sunday with another inch possible on Sunday night.

Coeur d’Alene could see similar amounts Saturday night and Sunday with a possible 1 to 2 additional inches Sunday night for a total of 3 to 7 inches.

A winter weather advisory is possible as the storm nears the region on Saturday. A winter storm warning may also be issued for higher snowfall amounts in the mountains, especially in the central Idaho Panhandle.

A low pressure area is predicted to move inland from the Pacific coast and it is likely to get caught between an arctic air mass to the north and milder temperatures to the south. The presence of arctic air ensures that precipitation will fall as snow, forecasters said.

Forecaster Jon Fox said the system is expected to stall over the region with the heaviest snow amounts falling in a band beneath the system.

That band will be oriented from west to east.

Computer models have had varying scenarios on precise location of the storm. One model is suggesting that the main snowfall band will set up to the south of Spokane, but two other models are agreeing on bringing the main batch of snow across Northeast Washington and North Idaho as well as the North Cascades and north central Washington.

While highs should be in the low 30s, lows at night will go from the lower 20s to teens on Monday and Tuesday nights as the remnants of arctic air move over the region.