Update at 11:00 p.m. EST Sunday:
This blog is no longer live as the severe weather threat has ended. See a recap of the outbreak and reports below.
At least eight people are dead after a particularly dangerous tornado situation unfolded Sunday across the Midwest.
Officials confirmed that two people lost their lives in Michigan from storm-related conditions, according to the Associated Press.
Six others died after multiple tornadoes struck Illinois. Three of those deaths occurred in New Minden, Ill., the site of an EF-4 (166 to 200 mph) tornado on the Enhanced Fujita Scale, officials told The Associated Press.
Winds gusted 60-70 mph in the northern suburbs of Columbus, Ohio Sunday evening, bringing down trees and powerlines as the powerful storms swept through the area.
As of 12:30 a.m. EST Monday, around 31,000 Duke Energy customers in Indiana and nearly 10,000 customers in Ohio were still without power, according to the company's website.
A line of intense showers containing gusts over 50 mph will quickly move eastward through the early morning hours Monday.
Baltimore, Philadelphia and New York could be impacted by these gusty showers early Monday morning.
Damaging winds will then spread across the Northeast through Monday.
More information on the severe weather can be found in this news story. Read below for the latest updates.
6:25 p.m. CST Sunday: The FAA is reporting flight delays due to thunderstorms at Chicago Ohare International, Detroit Metropolitan Wayne County and Cleveland Hopkins International airports.
5:47 p.m. CST Sunday: 75 mph wind gust recorded 3 miles north of Melbourne, Ky.
5:06 p.m. CST Sunday: A 70 mph wind gust recorded by ASOS, near Canton, Mich.
4:48 p.m. CST Sunday: Storms are now east of Indianapolis, Ind., and are transitioning towards areas from Michigan to Ohio and eastern Kentucky. Winds will likely be most damaging throughout Ohio. Tornadoes are also possible in the area.
4:38 p.m. CST Sunday: The tornado responsible for two deaths near New Minden, Ill., has been preliminarily rated as an EF-4 (at least 166 mph) tornado on the Enhanced Fujita Scale by the National Weather Service.
4:25 p.m. CST Sunday: Arriving and departing flights from Chicago O'Hare International Airport are experiencing a ground delay due to weather. Traffic arriving to the Detroit Metropolitan Wayne County Airport are also under a ground delay due to thunderstorms.
3:56p.m. CST Sunday: Funnel cloud sighted by law enforcement in Greenville, Ky.
3:54 p.m. CST Sunday: Tornado spotted two miles northwest of Crofton, Ky., according to NWS trained spotter.
3:40 p.m. CST Sunday: Funnel cloud reported by NWS trained spotter in Hopkins County, Ky.
3:33 p.m. CST Sunday: NWS trained spotters report funnel clouds in Spencer County, Ind.
3:23 p.m. CST Sunday: Complexes evacuated due to gas leaks from tornado damage near Logansport, Ind., according to emergency management.
3:15 p.m. CST Sunday: Emergency management reports widespread damage from a tornado in Corydon, Ky.
3:11 p.m. CST Sunday: Tornado damage reported in Paducah, Ky.
3:10 p.m. CST Sunday: Funnel cloud seen near Noblesville, Ind., according to NWS trained spotter.
3:00 p.m. CST Sunday: NWS trained spotter reports a tornado near Eddyville, Ky.
2:52 p.m. CST Sunday: Tornado on the ground near Lebanon, Ind., reports NWS spotter.
2:49 p.m. CST Sunday: Golf-ball sized hail fell near Lone Oak, Ky., according to NWS spotter.
2:47 p.m. CST Sunday: 80 mph wind gust recorded in Swayzee, Ind., reports NWS spotter.
2:45 p.m. CST Sunday: Tornado reported by fire department near Morganfield, Ky.
2:42 p.m. CST Sunday: Due to thunderstorms and severe weather, flights arriving at Chicago O'Hare International Airport are experiencing delays up to two hours and 49 minutes. Departing traffic destined for Detroit Metropolitan Wayne County Airport will not be allowed to depart until at least 4 p.m. CST or later, according to the Federal Aviation Administration.
2:35 p.m. CST Sunday: Emergency management confirms a tornado nine miles northwest of Shoals, Ind., heading towards Bedford and Oolitic at 70 mph.
2:22 p.m. CST Sunday: Tornado confirmed seven miles southwest of Kokomo, Ind., and moving northeast at 75 mph towards Converse and Greentown, according to emergency management.
2:20 p.m. CST Sunday: NWS spotter sighted a tornado in Paducah, Ky., along N. 8th Street near Brookport Bridge.
2:16 p.m. CST Sunday: A tornadic storm is tracking across northern Pulaski County, Ind., approaching the communities of Beardstown and Monterey. A fire department confirmed a tornado touchdown from this storm at Route 421, just north of State Route 14.
2:15 p.m. CST Sunday:
2:13 p.m. CST Sunday: NWS spotters confirmed a tornado was on the ground near La Center, Ky., and tracking toward Paducah, Ky.
2:10 p.m. CST Sunday: NWS spotter reports that thunderstorm winds ripped a roof off a barn and damaged a fence in Kevil, Ky.
2:06 p.m. CST Sunday: Fire department reports tornado three miles south of Medaryville, Ind.
2:03 p.m. CST Sunday: Thunderstorms with a history of producing tornadoes and funnel clouds are pressing toward Paducah, Ky.
1:53 p.m. CST Sunday: Emergency manager sighted a tornado two miles west of Patton, Ill.
1:50 p.m. CST Sunday: A thunderstorm capable of producing a tornado was tracking toward Purdue University in Indiana.
1:49 p.m. CST Sunday: According to an amateur radio report, winds gusted to 82 mph in Dayton, Ind.
1:29 p.m. CST Sunday: Northwest of Indianapolis, a thunderstorm capable of producing a tornado is located near Covington, Ind., and racing to the northeast.
1:24 p.m. CST Sunday: Another line of gusty showers and thunderstorms is approaching Chicago. Dry weather will then follow by 2 p.m. CST.
1:17 p.m. CST Sunday: A ground stop is in effect at Detroit's Metropolitan Wayne County Airport and Chicago's Midway and O'Hare airports due to thunderstorms, FAA reports.
1:08 p.m. CST Sunday: South of Chicago and northwest of Champaign, a thunderstorm capable of producing a tornado is approaching Hoopeston, Ill., and Fowler, Ind.
12:53 p.m. CST Sunday: Strong thunderstorm winds blew over mobile homes in Garrett, Ill., according to emergency manager.
12:51 p.m CST Sunday: Confirmed tornado located near Chicago suburb of Frankfort, according to the National Weather Service. The tornado is heading toward the suburbs of Dolton, Harvey and East Chicago.
There is literally a tornado right next to I-55. pic.twitter.com/CnAq6rz2fU— chicago problems (@chicagoproblem) November 17, 2013
12:45 p.m. CST Sunday: Line of thunderstorms are currently crossing Chicagoland with the strongest thunderstorms bearing down on the city's southern suburbs. "After another line of thunderstorms follows this initial band, the thunderstorm threat will clear Chicago by 1:45 p.m. CST.
12:42 p.m. CST Sunday: NWS spotter reports winds gusted to roughly 75 mph when severe thunderstorms crossed Chicago's southwestern suburb of Oak Lawn.
12:32 p.m. CST Sunday: Officials at Chicago's Soldier Field have asked all fans to seek shelter immediately due to impending severe weather, according to the Soldier Field twitter feed. Play has been temporarily halted.
ATTENTION: Due to severe weather, all fans inside Soldier Field are being asked to seek shelter immediately.— Soldier Field (@SoldierField) November 17, 2013
12:30 p.m. CST Sunday: According to Flightstats.com, more than 400 flights have been delayed so far today and more than 140 flights have been canceled.
12:23 p.m. CST Sunday: A line of violent thunderstorms with a history of producing damaging winds and frequent lightning is still approaching Chicago's Soldier Field. The worst of the storms will target Soldier Field between 12:35 and 1 p.m. CST.
12:20 p.m. CST Sunday: Law enforcement sighted a tornado at Braceville, Ill., along Illinois Route 113 at the border of Will and Grundy counties.
12:00 p.m. CST Sunday: Winds gusted to 51 mph at Chicago's O'Hare International Airport as a line of damaging thunderstorms presses toward the city's Lakefront.
11:59 a.m. CST Sunday: Tornado with a history with producing destruction northeast of Peoria, Ill., is heading toward the Illinois communities of Mazon and Channahon. Both are southwest of Chicago.
11:45 a.m. CST Sunday: AccuWeather.com sees this image posted from Soldier Field about the impending severe weather.
11:36 a.m. CST Sunday: NWS spotter reports a tornado on the ground north of the border of Woodford and LaSalle counties. Power flashes were occurring.
11:34 a.m. CST Sunday: AccuWeather.com Senior Meteorologist Frank Strait reports seeing indicators of debris on radar in Roanoke County, Ill.
11:32 a.m. CST Sunday: Emergency manager reports a downed cell phone tower by a tornado two miles east of Metamora, Ill.
11:30 a.m. CST Sunday: Severe weather, including potential tornado, is on track to reach Chicago's lakefront in 45 to 60 minutes.
11:17 a.m. CST Sunday: A confirmed large and extremely dangerous tornado was located near Roanoke, Ill., and racing to the northeast. The tornado will threaten the communities of Minonk and Streator.
11:15 a.m. CST Sunday: The tornado tracking northeastward away from Peoria, Ill., has been described as "large" by emergency manager. The tornado is tracking toward the Illinois communities of Metamora, Roanoke and Minonk.
11:04 a.m. CST Sunday: "Confirmed damaging tornado in central Illinois," was reported on the National Weather Service's Office in central Illinois.
Confirmed damaging tornado in Central Illinois. This is the real deal folks!— NWS Northern Indiana (@NWSIWX) November 17, 2013
11:03 a.m. CST Sunday: NWS spotter heard from an emergency manager of a brief tornado touchdown near the intersection of Routes 29 and 98, south of Peoria, Ill. The damage is being reported near Peoria.
10:53 a.m. CST Sunday: Radar-indicated tornado passing just south of Peoria, Ill., and tracking toward East Peoria, Ill.
10:42 a.m. CST Sunday: Thunderstorm capable of producing a tornado is located near Ashland, Ill., and tracking toward Athens and Greenview, Ill. The thunderstorm is expected to cross I-55, north of Springfield.
10:33 a.m. CST Sunday: "There are no plans to delay [the Bears-Ravens game]," stated the Chicago Bears on their official twitter page. Severe weather still expected to reach Chicago around the start of the game.
10:30 a.m. CST Sunday: Thunderstorm capable of producing a tornado is located near Wind Lake, Wis., and headed toward Milwaukee.
10:22 a.m. CST Sunday: Thunderstorms with a history of producing hail are tracking toward areas just to the northwest of Peoria, Ill.
10:20 a.m. CST Sunday: New tornado watch box has been issued for Indiana, southern Michigan and western Ohio. This watch box is in effect until 7 p.m. CST Sunday and includes Indianapolis and Detroit. Click here to view the latest watches and warnings that are in effect.
10:16 a.m. CST Sunday: Another thunderstorm capable of producing a tornado is tracking toward Hebron and Richmond, Ill.
9:57 a.m. CST Sunday: Radar-indicated tornado is currently located near Pell Lake, Wis., and heading toward the Wisconsin communities of Bohners Lake and Union Grove.
9:50 a.m. CST Sunday: NWS trained spotter reported a funnel cloud three miles west of Hebron, Ill.
9:34 a.m. CST Sunday: Thunderstorm capable of producing a tornado is tracking toward Harvard and Richmond, Ill., which are located to the northwest of Chicago.
9:33 a.m. CST Sunday: Severe weather is beginning to erupt across the Midwest. One severe thunderstorm capable of producing damaging winds is headed toward Dubuque, Iowa.
9:25 a.m. CST Sunday: Law enforcement report that winds gusted to roughly 60 mph and pea-sized hail fell when a thunderstorm crossed New Vienna, Iowa.
9:21 a.m. CST Sunday: The official twitter page of the Chicago Bears states that crews are taking off the field at the Soldier Field in advance of the Bears-Ravens game, but severe weather is still on track to strike Chicago during kickoff or the first half of the game.
8:50 a.m. CST Sunday: The danger level for tornadoes remains high in Chicago for early Sunday afternoon. The severe weather is expected to cross the city during kickoff or the first half of the NFL game between the city's Bears and the Baltimore Ravens.
8:45 a.m. CST Sunday: AccuWeather.com meteorologists discussed the situation and feel that the greatest tornado threat is east of St. Louis. Damaging winds are the primary concern for the city.
8:40 a.m. CST Sunday: A tornado watch has been issued and stretches from St. Louis, Mo., to Davenport, Iowa, to Chicago, Ill. NOAA's Storm Prediction Center has declared this a particularly dangerous situation and AccuWeather.com meteorologists agree.
Temperatures will remain in the 90s across the Metroplex through the Labor Day weekend.
More unsettled weather is coming to the Minneapolis area.
While Marie will stay well offshore from Los Angeles, it will continue to produce dangerous surf along many Southern California beaches through Thursday.
While Hurricane Cristobal will track east of the United States this week, it will spread rough surf along much of the Atlantic coast and will have some direct impact on Bermuda.
After a brief cooldown late this week, very warm and humid air will bounce back during the Labor Day weekend.
While the weather over much of the Atlantic and Pacific coasts will be free of rain this Labor Day weekend, a zone of unsettled weather will reach across part of the Central states.
Sherman Pass, WA (1980)
2 inches of snow.
Pennsylvania & New Jersey (1971)
Tropical Storm Doria caused severe floods in southeastern PA and NJ. Damage estimated at $138 million.
Colorado Springs, CO (1978)
Hail 6 inches deep.