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[May 13, 2010] (AP) Wet weather continued over the Midwest and New England on Thursday, as a strong low pressure system slowly moved over the Great Lakes.

(Click on map for larger image.)

Hardware The system was forecast to create two frontal boundaries, including a cold front that would extend southward, sweeping through the central and southern Plains and into the Mississippi River Valley. At the same time, a warm front would stretch over the Midwest and Great Lakes, extending into New England. Scattered showers and thunderstorms were expected to develop along these fronts, with a chance for turning severe. Severe weather was most likely to occur in the Ohio River Valley and Great Lakes region and would produce periods of heavy rain, large hail and strong winds. Problems with flooding would remain a threat as the region would see another dose of wet weather.

Flow around this system would continue pulling warm air into the eastern U.S., while cool Canadian air filled into the center of the country. The central Plains would see highs in the 60s, while the northern Plains would remain in the 40s. The lower Mississippi River Valley and Southeast were expected to reach into the 80s and 90s.

To the West, snow would end over the Rockies as this system moved well off to the East. Thus, high pressure over the West Coast would spread over the mountains, allowing for partly cloudy skies diminishing throughout the day. The West Coast was expected to see another warm and dry day, with highs in the 60s and 70s in most areas, while inland valleys might reach into the 80s.

Temperatures in the Lower 48 states Wednesday ranged from a low of 6 degrees at Windom, Minn., to a high of 97 degrees at Fort Stockton, Texas.

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On the Net:

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]