snow squall causing this mammoth pile-up. nearly a hundred cars and trucks slamming into one another. terrified drivers saying they couldn't see more than three feet in front of them and they slid off the highway. there were so many damaged cars, police had to tow them to a racetrack to investigate. big part of the country heading into a deep freeze on this final day of february. >> accu weather meteorologist jim dickey has the latest on this record-breaking cold. good morning, jim. >> good morning john and marci. challenging record lows across the north and east here. through morning hours, on the left, expected lows this morning on the right. the records. so detroit likely shattering the record here this morning. similarly in chicago down to minus 4. the record would be zero. then challenging records, pittsburgh, philadelphia, all in all keeping things cold here. moving in from off-shore, bringing in torrential rain. too much after good thing will lead to flooding here as we see the rain pour down throughout the day. l.a., san diego, up into san