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[May 26, 2010] (AP) Severe weather was forecast to persist over the central U.S., due to a strong cold front stretching down the Mississippi River Valley.

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A low pressure system moving through central Canada would create a cold front that would extend southward, kicking up scattered showers and thunderstorms from the Great Lakes to the Gulf of Mexico. Forecasters said some of these storms might turn severe as the system had a history of producing heavy downpours, damaging winds, large hail and even tornadoes. Meanwhile, a ridge of high pressure would quickly build over the Plains and allow for plenty of sunshine and warm conditions. Highs were expected to remain in the 80s over the Plains.

In the East, a ridge of high pressure would dominate the weather in the Northeast and New England, bringing warm and humid conditions. Forecasters said this might allow for some afternoon showers and thunderstorms to develop. Sunny skies were expected to return to the Southeast as the low pressure system hovered just offshore. Forecasters said it may continue triggering a few coastal showers over the Southeast and Mid-Atlantic states.

Out West, another rainy day was expected Wednesday as a low pressure system continued pushing moisture over the Pacific Northwest and California. Forecasters said scattered showers and thunderstorms might develop at higher elevations of the Sierra Nevadas, Cascades and the northern Rockies. This system would also bring some much cooler air into the region, allowing for temperatures to remain lower than seasonal.

Temperatures in the Lower 48 states Tuesday ranged from a low of 19 degrees at Stanley, Idaho, to a high of 98 degrees at Patterson, La.

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[Associated Press article from Weather Underground]