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>> nancy: we are hearing calls for help from new jersey boy scouts. >> the bear is on top of him. >> nancy: chilling moments while their skoult-master was being mauled by this bear. that troop leader went into the cave. little did he know that cave was not empty. >> where is the emergency? >> my scout-master walked into a cave and a bear is in the qaif him. >> reporter: an urgent call from one of three young boy scouts after their scout leader con fronts a black bear while on a hike.

hampshire, southern new hampshire, it is out of the north. where you have that northerly wind, temperatures much colder. in fact, right across the merrimack river, stretching all the way intak in toward lowell. tyngsborough. temperatures have dropped off in a quick amount of time. you notice the low 20's across southern new hampshire. compare that to 35 in boxford. 35 in reading. and this cold air is slowly oozing its way back toward 495. and then moving south. we are going to have to watch this area for some freezing rain and sleet.