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Weekend Weather Outlook

UPDATED 6 AM EDT, May 18, 2013

By WeatherBug Meteorologist, John Bateman

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An active weather weekend is in store, especially in the central U.S. where powerful thunderstorms will be on the menu.

WeatherBug Meteorologist Katie Ferrier has the latest in this exclusive WeatherBug National Outlook.

Today:

Another round of severe thunderstorms will explode over the Plains today, with a Moderate Risk of severe thunderstorms in parts of the central Plains. It appears that the best chance for severe storms and tornadoes will be in parts of central Nebraska and north-central Kansas by this evening. Not only will very large hail, destructive wind gusts, and tornadoes be a concern, but flash flooding will be as well. This dangerous area of storms is expected to slide eastward for Sunday.

The northern and central High Plains won`t be the only ones enduring Mother Nature`s wrath to start out the weekend. Residents from the Ohio Valley and Mid-South, into the Mid-Atlantic beaches and Carolinas, as well as the Rockies, will need to carry an umbrella if heading out to a barbecue or attending a late-day baseball game.

The Interstate 5 corridor along the Pacific Northwest will also have a few outdoor plans ruined this afternoon thanks to light rain and scattered showers. Meanwhile, California, the Desert Southwest, and New England will be the only U.S. locations to avoid all of this, with plenty of sunshine filling the sky.

Most of the U.S. will see toasty 80s and lower 90s with a couple spotty 100s in the southern Plains and Southwest. Widespread 60s and 70s will dominate elsewhere, except cool upper 50s will be common along the Rocky Front Range, Washington State, the northern Great Lakes, and in eastern New England.

Sunday:

Sunday will be a near-carbon copy of today`s weather over the U.S., except the severe weather risk will develop eastward ahead of a cold front, and stretch from the southern Plains all the way to the Upper Midwest. Just like today, the storms will blossom late in the day, with the Interstate 35 corridor from Oklahoma to southern Minnesota caught squarely in its crosshairs. High winds, very large hail, and then chance for tornadoes will accompany the strongest thunderstorms.

A pesky front will be the source for heavy downpours and thunderstorms roaming the East Coast from upstate New York to central Florida. The slowest-moving thunderstorms could cause areas of flash flooding, especially across the Mid-Atlantic and along the Appalachian Spine.

The only other weather hiccup to close out the weekend will be found over the Rockies and Northwest, where showers and thunderstorms will have residents reaching for umbrellas and rain gear.

Temperatures will be nearly identical to today`s across the U.S., with 80s and 90s stretching from the Golden State and Southwest into the Central U.S. and Southeast to Carolinas. The cool spots will be over the Rocky Front Range and eastern New England coastline, where the mercury won`t break 60 degrees.

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