Photo by Eric Tichy

Wind chills as low as minus 20 degrees followed by snow with accumulation of 9 inches or more could make for a long weekend in Western New York.

The National Weather Service in Buffalo issued a wind chill advisory from 6 p.m. this evening through 1 p.m. Saturday as well as a winter storm watch beginning Sunday evening and lasting through Monday afternoon.

All of Western New York is included in the advisories, issued Friday morning.

“Travel could be very difficult to impossible,” the weather service said. “The hazardous conditions could impact the morning or evening commute. The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes.”

It added, “This is a potentially dangerous situation to be outdoors. If you must be outside, be sure to cover all exposed skin. Frostbite can occur in 30 minutes or less with apparent temperatures of 15 below zero or colder.”