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[March 22, 2011] (AP) A large low pressure system will bring wet weather to the central U.S. on Tuesday as it skirts eastward from the Rockies.

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Hardware This system brought heavy snow to the Intermountain West, Great Basin and central Rockies and now makes its way off the Rockies and into the Plains. Widespread scattered rain showers are expected to develop across the central Plains, northern Plains and upper Midwest. Highs ranging in the 40s will allow for mainly rain showers, but overnight lows will dip into the lower 30s, allowing for overnight snow showers to develop. Snowfall accumulation from 1 to 2 inches are expected across the extreme North.

The backside of this system will continue pulling cool and moist air into Montana and Wyoming, allowing for widespread scattered snow showers to persist. Farther behind this system, on the West Coast, another low pressure system approaches the north coast of California. This pushes more moisture onshore, allowing for widespread scattered rain showers to persist from Washington to southern California.

Meanwhile, in the East, a ridge of high pressure over the Gulf of Mexico extends over the South and stretches up the East Coast. This will bring mostly sunny skies with dry conditions. Highs are expected to range in the 70s and 80s in the South, and in the 50s and 60s across New England.

Temperatures in the Lower 48 states Monday ranged from a morning low of 5 degrees at Presque Isle, Maine, to a high of 90 degrees at Pecos, Texas.

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[Associated Press article from Weather Underground]