Weather Underground midday recap for Tuesday, June 11, 2013.
Unsettled weather continued for parts of the Eastern Seaboard on Tuesday as an upper level trough of low pressure continued on an eastward track across the Mid-Atlantic. Generally isolated to areas of scattered showers and isolated continued in parts of the Southeast through the Mid-Atlantic as the energetic cold front associated with this system trekked toward the East Coast. Meanwhile, the northern portion of this system kicked up more robust weather activity in the Northeast with periods of heavy rain and thunderstorms as well as scattered showers and thunderstorms in parts of the Great Lakes as it lifted northeastward.
In the Central U.S., a frontal boundary extending across the Northern Plains kicked up areas of light showers and thunderstorms from the region into areas of the Upper Midwest. Portions of the Central and Northern Plains into southern Wisconsin and northern Illinois were at slight risk of severe thunderstorm development late this afternoon through the evening with primary threats of hail and damaging wind gusts. Areas of north-central and northwest Nebraska into the Black ills region were also at risk of tornadoes.
Out West, a nearly stationary frontal boundary extending across the Northwest served as the focal point for rain and possible thunderstorm activity from parts of the Northern Intermountain West, Northern Rockies, and Northern High Plains. Additional showers along with cooler temperatures will returned to coastal areas of the Pacific Northwest.
Temperatures in the Lower 48 states Tuesday have ranged from a morning low of 34 degrees at Meacham, Ore. to a midday high of 109 degrees at Lamar, Colo.