The nation’s weather

Weather Underground Forecast for Thursday, June 27, 2013

Rain and thunderstorms will continue from parts of the western Ohio Valley into the Northeast and the Mid-Atlantic on Thursday as a frontal system over the Midwest advances eastward toward the Mid-Atlantic and New England States. Locally heavy rain and flooding may become possible with storms in parts of Pennsylvania southward through the Central Appalachians. Elsewhere in the East, an upper level disturbance will trigger showers and thunderstorms in parts the Southeast and Central and Eastern Gulf Coasts through the day. The Storm Prediction Center has issued a slight risk of severe thunderstorm development for much of the Eastern Seaboard as strong thunderstorm clusters in the region will have the potential to produce both damaging winds and hail during the afternoon and evening. While hail and damaging wind gusts are the primary threats with severe storms in this area, modest heating could support the risk of a couple of tornadoes.

Meanwhile, behind this activity, a trough of low pressure will extend across the Great Lakes, kicking up a few showers and thunderstorms. Organized clusters of thunderstorms in the region and southward into areas of Illinois and Indiana may become capable of producing hail and damaging wind gusts. In the Central U.S., scattered and stronger thunderstorms are expected from areas of southeastern Nebraska and southwestern Iowa through northeastern Oklahoma and northwestern Mississippi as frontal disturbance and wave of low pressure extends across the Central Plains. Storms in this area may turn severe with hail and damaging winds.

Out West, a strong warming trend is anticipated for the Desert Southwest during the next few days as high pressure builds over the West. Excessive heating will likely lead to some of the warmest temperatures of the year thus far for this region.

Temperatures in the Lower 48 states Wednesday have ranged from a morning low of 37 degrees at Kremmling, Colo. to a high of 106 degrees at Wink, Texas

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