A cold weather advisory is in effect until noon Wednesday in the Philadelphia region due to dangerous temperatures. In Monroe and Carbon Counties in Pennsylvania, an extreme cold warning is in effect ...
Temperatures across the majority of the Susquehanna Valley fall below zero tonight. Any slight breeze may push wind chills down to -15º. Temperatures peak in the teens Wednesday, 20s Thursday.
Once wind chill values reach -20°, it only takes 30 minutes or less for frostbite to set in. Surprisingly, humidity does not affect the overall wind chill enough to be considered a factor, but if skin ...