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[April 06, 2011] (AP) A strong and cold Pacific system drops south along the West Coast on Wednesday.

This potent system will bring unseasonably cold temperatures, widespread precipitation and low snow levels along with gusty winds from the Pacific Northwest and northern California eastward through the Intermountain West and Rockies from Wednesday into Thursday. Winds will increase ahead of the system, possibly reaching 60 mph over higher elevations, affecting highways and interstates. Impacts will shift to icy roads Thursday morning over the Sierras and western Nevada as snow levels drop to all valley floors.

Another cold front extending from the central High Plains to southern Nevada on Wednesday morning will continue to sag southeast, bringing more lower elevation rain and snow across the Four Corners and central Plains. Some rain is expected to spread into parts of the Southwest and southern Rockies.

Moving to the East, a system is expected to move southeast across the Great Lakes and Northeast on Wednesday, bringing a mix of rain and snow showers. Moreover, gusty winds brought by Tuesday's cold front may linger for portions of northern New England, and cold overnight temperatures may cause areas of frost over portions of the Southeast and Mid-Atlantic, but they should bounce back quickly during the day Wednesday.

Temperatures in the Lower 48 states Tuesday ranged from a morning low of 14 degrees at Monarch Pass, Colo., to a high of 91 degrees at Hollywood, Fla.

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Online:

Weather Underground: http://www.wunderground.com/

National Weather Service:
http://iwin.nws.noaa.gov/

Intellicast:
http://www.intellicast.com/

[Associated Press article from Weather Underground]