Be especially cautious on bridges and overpasses, which freeze faster than regular roads, he said.
Sgt. Deke Walker of West Virginia State Police in Martinsburg suggested that those who have to be out in icy conditions leave early.
"Give yourself plenty of time and simply be careful," Walker said. "But the best thing you can do is stay home. You never know what you're going to run into."
The Pennsylvania Department of Transportation has some additional driving tips:
- Avoid sudden moves or fast turns.
- Avoid quick acceleration or hard braking. Pump brakes on ice unless they're anti-lock.
- Reduce speed.
Lewis added, "We always recommend that people listen to their local radio stations" to keep up with current road conditions.