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Weather Underground Forecast for Wednesday, July 23, 2008.

Dolly, which is expected to be a hurricane by Wednesday, will strike the coast somewhere near the border of Mexico and Texas on Wednesday morning, presumably as a category one hurricane with winds around 90 to 95 mph. The hurricane is expected to produce six to ten inches of rain over southern Texas, and some areas could receive as much as fifteen inches of rain. Flooding in Texas is anticipated, especially along the coast, due to the heavy rain and the storm surge.

A front associated with a low pressure system centered over New York will extend through the Northeast and down into the Southeast and the Southern Plains on Wednesday. The East Coast will see a line of showers and storms along the front move through, with the highest probability of severe storms in the Northeast. The storms will produce heavy rain and strong winds, with hail and tornadoes possible with severe storms. Temperatures in the East will range from the 70s and 80s in the Northeast to the 90s to near 100 in the Southeast.

A trough of low pressure will kick up some showers and storms across the Northern and Central Plains on Wednesday. There is the potential for severe storms in the region, which could produce damaging winds and tornadoes. Temperatures across the Plains will range in the 80s and 90s, with 70s in the Upper Midwest and 100s in areas of the Southern Plains.

The Pacific Northwest can expect to see mostly sunny skies on Wednesday, while Montana and Idaho could see a few showers and storms due to the trough in the Plains. Temperatures across the Northeast will be in the 60s along the coast to 70s and 80s inland.

In the Southeast, California and Nevada will be mostly clear, while the Four Corners will see seasonable showers and storms. Temperatures across most of the region will range from the 80s and 90s, with the desert areas reaching 110.

Temperatures in the Lower 48 states Tuesday ranged from a low of 37 degrees at Headquarters, ID to a high of 114 degrees at Death Valley, Calif.