Gov. Tom Wolf signed a proclamation of disaster emergency Tuesday evening in anticipation of Wednesday's snowstorm.

Expected power outages and damages as well as travel affected his decision, according to Wolf's announcement. The governor also spoke Tuesday about the impacts the weather may have on the COVID-19 vaccine distribution.

“This proclamation makes it easier for all of those involved in vaccine delivery and keeping people safe to do their jobs,” Wolf said.

While the emergency proclamation does not mention school closures, a number of county schools already made their calls Tuesday night.

The Butler Area, Karns City Area, Seneca Valley and Mars Area school districts have canceled in-person instruction Wednesday due to the snowstorm in the forecast.

Butler was holding in-person instruction only for special education students while other students are receiving remote instruction.

In Karns City, the school district offered parents the option of having their children attend classes in-person or remotely.

Other school districts — including Allegheny-Clarion Valley, Moniteau and Freeport Area — did not post plans for Wednesday on their websites, but all three were using remote instruction for COVID-19.