A blizzard unfolded Wednesday afternoon near the Colorado/Kansas/Nebraska border and will move northeastward to the Upper Peninsula of Michigan and central Ontario by late Thursday.
The storm will also become known for high winds over the Plains, Midwest and eventually the East.
Over the Plains and the Upper Midwest, where snow falls and wind gusts reach 50 mph, extensive blowing and drifting snow is in store with local whiteout conditions. In a narrow swath, the storm will begin as a wintry mix or even rain, but will change to windswept snow. Thunder and lightning are possible with the snow in some areas.
Widespread travel problems are anticipated with this storm.
At the height of the storm, visibility can drop to near zero in heavy, wind-blown snow. Roads can quickly go from wet to snow-covered and icy. (Photos.com image)
Expect delays at airports in the path of the storms and ripple-effect delays in other parts of the nation. The storm will have direct impact on Chicago, Detroit and Minneapolis.
Travel could come to a crawl or even stop for a time on major highways including I-35, I-39, I-43, I-70, I-75, I-80, I-90 and I-196.
Cities in the path of the blizzard include Russell, Kan., Omaha, Neb., Des Moines, Iowa, Green Bay, Wis., and Marquette, Mich. Many of these cities can pick up between six inches to a foot of snow. A narrow swath from northwest Iowa to central Wisconsin could see up to a foot and a half of snow.
Cities at risk for a quick freeze-up and icy travel, with a lesser amount of snow include Kansas City, Mo., Cedar Rapids, Iowa, Chicago, Milwaukee, South Bend, Ind., and Grand Rapids, Mich.
The storm that brought heavy snow to the Intermountain West and Great Basin Tuesday will take a northeasterly path over the Plains and Upper Midwest, strengthening along the way.
The winds alone can be strong enough to down large tree limbs, cause minor property damage and bring power outages.
Lake-effect snow and high winds will also be a factor in the wake of the storm and may blend in during the tail end of the storm snow and blizzard in some areas.
This has the potential to be the most significant lake-effect event of the season so far from Lake Superior to lakes Erie and Ontario and potentially cloud be the heaviest lake-effect event of the winter for some locations.
South of the blizzard and freeze-up, needed rain will fall on part of the Ohio and Lower Mississippi valleys. However, a severe weather outbreak is also a possibility in the South and in the lower part of the Midwest.
Hurricane Ignacio may enhance showers and stir rough surf for the Hawaiian Islands as it approaches next week.
After Erika brings heavy rain and locally gusty winds from Hispaniola eastern Cuba into Friday night, the system will move toward the Bahamas, the Keys and South Florida this weekend.
As many as seven tropical cyclones were churning throughout the world this past week, while smoke from wildfires across the Pacific Northwest led to poor air quality across the region.
Heat and humidity will return to Harrisburg this weekend and hang on into next week.
Heat will linger in Eastern Europe for much of the fall season; meanwhile, the British Isles and northwestern Europe can expect a stormy end to the season.
As Hurricane Katrina barreled towards the Gulf Coast, peaking at Category 5 strength while feasting on the warm waters of the Gulf of Mexico, meteorologists around the country prepared to deliver one of the most crucial and life-saving forecasts in history.
Colorado Springs, CO (1978)
Hail 6 inches deep.
Rochester, MN (1979)
2.73 inches of rain fell in 50 minutes making this the wettest August on record. (9.52 inches of rain so far this month). The heavy downpour flooded the streets of Rochester, stranding about 1,500 cars.
A five-state tornado outbreak in Nebraska, Kansas, Wyoming, Iowa and Missouri occurred on this date. In all, 20 tornadoes were reported. Nine were in Iowa. One near Farragut, IA, in the extreme SW corner of the state, caused several fatalities and numerous injuries.