A particularly dangerous situation is unfolding across the Midwest where the stage is set for devastating tornadoes.
Severe thunderstorms and tornadoes will erupt, then spread eastward across the lower Great Lakes and Ohio Valley late Sunday morning through the afternoon.
The setup will be particularly high for the formation of tornadoes across northern and eastern Illinois, far southeastern Wisconsin, Indiana and southwestern Michigan.
Damaging winds will then spread across the Northeast Sunday night through Monday.
More information on this significant tornado threat can be found in this news story. Read below for the latest update on the unfolding severe weather.
UPDATES: (All times are listed in CST)
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.
9:21 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.