(Dover, NH) - Black ice formed overnight, turning roads, driveways, parking lots and sidewalks into skating rinks.

Don Briand photo

You will have to do some window scraping if your vehicle was outside overnight.

Crews are out sanding and salting, but there have been many school delays reported this morning.

Things will get better later this morning as temperatures start to climb.  It will be in the mid to upper 40's by afternoon.