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Weekend Weather Outlook

UPDATED 10:15 AM EDT, October 13, 2012

By WeatherBug Meteorologist, Chad Merrill

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The weather will turn quite active this weekend across the U.S. as one storm system heads from the Plains to the Northeast while another swooshes into the Northwest.

WeatherBug Meteorologist Addison Green has the latest in this exclusive WeatherBug National Outlook Video.

Today:

A low pressure will send a strong cold front through the Central U.S. producing bursts of heavy rain and severe storms. To the north and east of the low, a steady rain will squash outdoor plans in the Great Lakes.

Warm, humid air surging north from the Gulf of Mexico will clash with cooler, drier air sweeping in behind the front to produce widespread severe storms in the Plains and Midwest.

A few could have tornadoes early in the afternoon before likely organizing into a line of destructive storms and sweeping east through the Plains into the Mid-Mississippi Valley. Damaging winds will be the greatest threat. Cities like Dallas, Oklahoma City, Des Moines, Iowa and Chicago will all have to keep a watchful eye to the sky for rapidly changing weather.

To the north of the warm front, a chilly rain will splash on the Great Lakes before showers move into the Interior Northeast by nightfall. A bit of moisture remaining in the colder air behind the cold front will produce a few morning snow showers in the Central Rockies before dry air moves in by midday.

Meanwhile, a few spits of rain will pelt the Northwest and Florida. Otherwise, high pressure will ensure a dry, sunny day in the West and along the East Coast.

Temperatures will warm well into the 70s and 80s ahead of the cold front in the Plains, Mississippi Valley and Southeast. Highs will also zoom into the 70s for much of California and the Southwest.

Cooler 50s and 60s will overspread the Northwest, Great Basin, Rockies, Great Lakes, Mid-Atlantic and Northeast. Only the Central Rockies and northern New England will stay in the 30s and 40s.

Sunday:

The same Plains weather maker will sweep into the Ohio and Tennessee valleys to round out the weekend while soggy weather hammers the Northwest.

Severe storms will move from the Mid-Mississippi Valley late Saturday to the Midwest, Ohio and Tennessee valleys by Sunday as the cold front chugs east. Once again, damaging winds will be the main concern with the storms. Cities most at risk Sunday include Nashville, Tenn., Louisville, Ky., and Cincinnati.

Farther south, showers and storms will be scattered along the Gulf Coast with more garden-variety storms for central and south Florida.

What will start out as a sunny weekend will turn into a cloudy, rainy one in the Northeast. Rain will overspread much of New England on Sunday as the warm front lifts north into Maine. A few spots in northern Maine will see snow mixed in early Sunday before the warm air invades from the south.

A strong low pressure south of Alaska will send Pacific moisture into the Northwest. As much as 1 to 2 inches will drench Washington`s Olympic Peninsula. The remainder of the West and much of the Southeast and Mid-Atlantic will enjoy sunshine under a sprawling high pressure.

Temperatures won`t be characteristic of fall across much of the U.S. Other than northern New England struggling to climb out of the 40s, highs in the 60s, 70s and 80s will be common from the Northwest to the Southeast Coast. The warmest spot will be the Southwest where highs will reach into the 90s.

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