The nation's weather

AP News
Posted: Dec 10, 2011 5:28 AM
The nation's weather

Weather Underground Forecast for Saturday, Dec. 10, 2011.

Lake effect snow was expected to persist across the Great Lakes, while rain showers lingered in Florida on Saturday. A weak trough of low pressure hovered over the Great Lakes and kicked up more lake effect snow showers along the downwind shores. Snowfall accumulation was expected to range from two to four inches across parts of New York state and the Upper Peninsula of Michigan.

In the South, high pressure continued to build over the Southeast, allowing for another dry and cool day. However, a frontal boundary over Florida and the Bahamas was expected to kick up some more scattered rain showers. Rainfall totals were expected to remain light across these areas.

In the West, a ridge of high pressure continued to dominate from the West Coast, over the Rocky Mountains, and builds into the Plains. This was expected to push in cool and dry air from Canada, allowing for chilly conditions to persist. Overnight lows were expected to drop below zero at higher elevations and across the Northern Plains, while daytime highs remained 10 to 15 degrees below seasonable.

A trough of low pressure approached the Pacific Northwest from the Gulf of Alaska. This system pushed a cold front into British Columbia which triggered periods of heavy snow. The tail end of this frontal boundary could reach into the Pacific Northwest and kick up some coastal showers, with high elevation snow in the Cascades. Temperatures in the Lower 48 states Friday ranged from a morning low of -14 degrees at Hettinger, N.D. to a high of 82 degrees at Fort Myers, Fla.