As another wave of arctic winds blows through Indiana, temperatures have fallen drastically across Central Indiana.

Meteorologists are expecting 45 to 55 mph winds overnight into Monday in the Chicago area. Temps could also drop overnight into the teens with subzero wind chills. Snow showers accumulating up to an inch are also possible early Monday.

The National Weather Service (NWS) confirmed Friday the strong wind event that swept through Boyle Heights on Christmas Day was indeed a tornado.

The winter weather this weekend caused travel problems during the busiest time of year. On Sunday, more than 10,000 flights were delayed nationwide, according to the flight tracking website FlightAware. On Monday, the disruption was less severe, with around 800 cancellations in the U.S., according to the site.

A brief tornado occurred in Los Angeles County on Christmas Day. Days later, gusty winds impact SoCal through Tuesday, Dec. 30.

A powerful storm system continues to disrupt travel, placing 64 million people under winter weather alerts that span two-thirds of the nation.

With a wind speed of up to 80 mph, a brief tornado traveled for about one-third of a mile in Boyle Heights, a neighborhood on L.A.'s Eastside, just after 10 a.m.

The Storm Prediction Center put much of Illinois, Indiana, southern Michigan, and northwest Ohio under level 1 and 2 risks.