A low pressure system will sweep over the Great Lakes from Canada on Saturday, providing the most active weather in the country.
The low pressure system will begin the day just north of Minnesota, but will move into Michigan by the end of the day. The cold front associated with this low will press through the Plains and Ohio Valley on its way toward the eastern seaboard on Sunday. A line of rain and some thunderstorms are expected to move from Nebraska through western New England and south through the Tennessee Valley. This precipitation will increase in western New England late in the day.
Meanwhile, a small low pressure system will make its way slowly through the Northwest. A few showers ahead of the low will fall in the Intermountain West, but will not be widespread.
Elsewhere in the West, afternoon heating will allow scattered showers and thunderstorms to develop in the Southwest and along the Rockies. Generally warm to hot temperatures are expected, except near the coast where low coastal clouds will provide some protection from summer heat.
The Northeast will rise into the 70s and 80s while the Southeast will see temperatures in the 90s. The Southern Plains will rise into the 90s and 100s, while the Southwest will see similar temperatures. The Northwest will rise into the 80s and 90s.
Temperatures in the Lower 48 states Friday ranged from a low of 34 degrees at Chemult, Ore. to a high of 120 degrees at Death Valley, Calif.
On the Net:
Weather Underground: http://www.wunderground.com
National Weather Service: http://iwin.nws.noaa.gov
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