Weather Underground Forecast for Friday, December 30, 2011.
Wet and snowy conditions persist in the Northwest on Friday, while light rain and snow moves over the Great Lakes into the Northeast. A low pressure system off the coast of British Columbia pushes a strong cold front over the Pacific Northwest. This will produce more rain and high elevation snow showers. As this system moves into the Northern Rockies, it will continue triggering widespread snow showers. Expect 2 to 4 inches of snow across Idaho, Montana, and Wyoming. However, heavy snow showers will persist for the Cascades, with 3 to 6 inches expected in most areas, with up to 18 inches across highest mountain peaks. Strong winds will accompany this system with gusts from 30 to 40 mph, up to 60 mph at high mountain passes.
In the East, a low pressure system will continue moving eastward, over the Great Lakes and Midwest, into the Northeast. This system will continue triggering a wintry mix of light precipitation. Snow showers are likely in the Northeast and across the Great Lakes, while precipitation will turn to rain showers in the Ohio River Valley and Midwest. Snowfall accumulation in most areas will range from 1 to 2 inches, expect more is likely across the downwind shores of the Great Lakes. Rainfall totals will range around a half of an inch across the Midwest.
The rest of the nation will see mild and dry weather as high pressure dominates over the Southern US. Expect dry weather with highs in the 60s from California and the Southwest through the Southern Plains and Southeast. Temperatures in the Lower 48 states Thursday have ranged from a morning low of -14 degrees at Mt. Washington, N.H. to a high of 77 degrees at Weslaco, Texas