Understanding its meaning can help drivers avoid sudden braking, hesitation, or dangerous manoeuvres.

SUSQUEHANNA VALLEY, INCLUDING ONE IN YORK, HAVE DECLARED A CODE BLUE, MEANING THEY FEEL IT IS DANGEROUSLY COLD TO STAY OUTSIDE FOR ANY LENGTH OF TIME. NEWS EIGHT’S GABRIEL THOMAS IS LIVE IN YORK WITH ...

With temperatures in the teens, Philadelphia, Montgomery County and parts of New Jersey are under a Code Blue, meaning extra resources are available for people who need shelter. Brandon Goldner is out ...