There is the potential for a severe weather outbreak spanning through Sunday across the northern tier of the United States and neighboring Canada.
The outbreak includes the risk of strong straight-line winds, large hail and a few tornadoes.
An unusually potent disturbance for early August will swing from northwest to southeast across the northern Plains and adjacent Prairies in southern Canada during the latter part of this week to the Great Lakes, St. Lawrence Valley and central Appalachians spanning this weekend.
This feature is likely to produce both complexes of thunderstorms with high winds, hail and flash flooding on a regional level, as well as isolated intense thunderstorms capable of bringing a tornado to a few communities.
The feature, which resembles a storm system from the springtime, was rolling eastward into Saskatchewan early Friday morning.
Power outages, property damage and frequent lightning strikes can occur with some of the storms.
The risk area today be found in the eastern Dakotas, western and central Minnesota, southeastern Manitoba and part of northwestern Ontario.
The area from central Iowa to eastern Wisconsin, including Des Moines, Minneapolis and Madison, Wis., could be in the crosshairs of the nasty storms during Saturday.
Ominous storms could be in the vicinity of Chicago Saturday evening.
There is the potential for more of a squall line setup later this weekend around the central and eastern Great Lakes and Ohio Valley and into the central Appalachians.
Approximate timing for the severe storms from Indianapolis to Detroit, Toronto and Ottawa would be Saturday evening into early Sunday.
During Sunday, the storms would affect areas from Nashville to Cincinnati, Pittsburgh, Buffalo, Scranton, Albany and Montreal.
During Sunday evening into Monday, the storms would advance across the Appalachians into the I-95 zone, after a weekend of heat, humidity and spotty drenching storms.
People in the path of this potentially damaging and life-threatening storm system should keep up to date on the latest weather information.
Spotty and locally strong thunderstorms will fire ahead of this event in portions of the Plains, Midwest and the East.
Damaging thunderstorms will threaten North Carolina to the southeast Pennsylvania on Wednesday.
Temperatures will plummet by as much as 40 degrees Fahrenheit in less than 24 hours along the I-95 corridor from New York City and Philadelphia to Washington, D.C.
A major winter storm will lash Illinois to Maine. It will unfold into a blizzard across portions of New England, unleashing more than a foot of snow.
With winter coming to a close, numerous cars are off the roadways and in body shops, as vehicles take a hit from the season's potholes and salt corrosion.
A storm system will move east through the Rockies and spread snow into the Plains during the day on Tuesday.
Rain is in the forecast leading up to the start of the Formula 1 Season in Melbourne this weekend.
Paris, TN (1986)
Early in the morning, several planes broke away from the Downs Airport as the wind jumped from calm to 65 knots in just one second!
Columbia, MO (1937)
(12th-13th) 12.8" of snow.
Chicago, IL (1923)
Record low pressure of 28.70" occurred during a late winter storm; heavy snow, thick glaze gales, much rain; $800,000 damage.