Winter Storm Liam already brought freezing rain to states stretching from Texas to Arkansas
snow storm
Credit: Getty Images/Spencer Platt

Winter Storm Liam's path is bringing a combination of ice, snow, and rain across the Ohio Valley and the Northeast on Wednesday, causing thousands of flight delays and hundreds of cancelations across the country.

As of Wednesday morning, Winter Storm Liam brought freezing rain to states stretching from Texas to Arkansas, and from 1 to 4 inches of snow in parts of Illinois, southern Michigan, Ohio, Indiana, and western Pennsylvania, according to the Weather Channel’s forecast.

Over 20 states issued winter weather alerts with advisories currently in effect for threats of snow, freezing rain, and sleet, in areas including Louisville, Columbus, Cleveland, Detroit, Washington D.C., Baltimore, Philadelphia, Hartford, Boston, and most of New York.

As Winter Storm Liam's path moved toward the Northeast, more than 850 flights were canceled across the country so far while thousands have been delayed, according to flight-tracker FlightAware. Some airlines preemptively canceled or delayed flights on Tuesday in preparation the conditions Winter Storm Liam would bring.

A variety of major carriers like American, Delta, Frontier, JetBlue, Southwest, United, WestJet, and Air Canada are offering free refunds and change fees because of Winter Storm Liam's disruptions.

The combination of snow and ice will cause tough travel conditions in major cities like Boston and New York on Wednesday because of slippery roads, with snowy conditions expected to change into rain by late Wednesday evening in Philadelphia, Baltimore, and Washington, D.C.

These tricky travel conditions across several states may continue into the morning.

In Connecticut, for example, Wednesday’s conditions have left roadways covered in snow and stop-and-go traffic in areas like the State Route 850 in New Hartford, according to WKTV, while another winter storm watch could mean more snow in areas like Chicago continuing on through Thursday and Friday.

According to Accuweather, those driving along long stretches of Interstates 79, 80, 81, 84, 86, 87, 88, 89, 90, 91, 93 and the northern part of I-95 can expect snowy and slippery conditions heading into Thursday morning, with additional closures possible in the morning due to heavy amounts of snow or black ice.

The storm, which picked up on Tuesday, will continue making its way into Canada, with alerts currently in affect across southern Alberta, interior British Columbia, Naujaat, Kuglutktuk, and the Rankin region.

The country's mountain parks and areas like central Alberta are already seeing snowfall, with anywhere from 13 to 19 inches of snow expected in areas like British Columbia by Thursday night.