It's mid-November, so weather will start to affect some NFL games.
It could be a real problem in Chicago, where a tornado is possible during the Ravens-Bears game
There is an "extraordinarily rare" tornado watch for Sunday until 4 p.m. as a result of a pair of weather systems over the northeastern Illinois area according to the Chicago Tribune.
"We're very concerned," weather service meteorologist Gino Izzi told the Tribune. "We're definitely stressing that this is not your run-of-the-mill tornado watch."
A tornado touched down at about 11 a.m. Central time near East Peoria, which is in west central Illinois, and another is on the ground and moving toward Streator, about 100 miles southwest of Chicago, according to the Tribune.
Izzi told the Tribune that this is the "top tier" of tornado watches that ever gets issued.
Ominous sky hovers over Soldier Field as we are just 30 min away from Bears-Ravens KO. @rrstar_sports pic.twitter.com/lBOMZdbJfj
— Jay Taft (@JayTaft) November 17, 2013
Soldier Field general manager Tim LeFevour told NBC Chicago that evacuation procedures are in place, and there's a possibility fans are evacuated before players come off the field. He estimated it would take 15-20 minutes to get fans to safety in case of extreme weather.
Hopefully the weather doesn't come near the stadium, but there will likely be high winds and storms that will affect both offenses.

Weather, and particularly high winds, will be an issue for other games including Browns-Bengals and Jets-Bills.
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Frank Schwab is the editor of Shutdown Corner on Yahoo Sports. Have a tip? Email him at [email protected] or follow him on Twitter!
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