cold air is blowing into the area. it s especially chilly on this manmade rink. tonight will be the coldest we re seen so far. is it bad that i want to wait until it s a little bit warmer to get on that ice? i m right there with us. it will be with us for a while. yeah, you know, it s going to get quite a bit colder than it has been today. temperatures have been dropping off. we have felt that as we ended out the week. just a couple days ago we had 70 degrees. now 40 in philadelphia. 37 allentown and reading. below freezing right now in the poconos. 39 right now in dover. take a look at what most of the country is seeing. 30s stretch all the way down into dallas. much of the southeast seeing about 40-degree temperatures. many of us are either near freezing or below freezing. so the cold air is really taking its grip and it s not going to let go any time soon. by 6:00 p.m., upper 30s. friday night, 10:00, temperatures dropping closer to freezing. tomorrow morning will
nightly news begins now. from nbc news world headquarters in new york, this is nbc nightly news with brian williams. good evening. it was so brazen and so scary coming as it did after weeks of anti-police protests in this country, the assassination of two new york city police officers by a deeply disturbed career criminal has had a chilling effect on police departments across this country. and in new york it s causing great tension as the mayor of the nation s largest city is forced to defend himself against charges that he has not been supportive enough of those whose job it is to protect and serve. it s where we begin tonight with nbc s stephanie gosk in brooklyn. stephanie, good evening. reporter: hey, good evening, brian. tonight, the new york police commissioner says there s been a number of unsubstantiated copycat threats. nbc news has learned that on the night of this murder the police patrol reached out to all precincts and asked police officers to link up f
announcer: from nbc news world headquarters in new york, this is nbc nightly news with brian williams. good evening. and on this eve of christmas eve, the weather is making news with so many americans on the move. because of this, the mass of weather east of the rockies to the eastern seaboard, it s going to be a mess for so many. and as of tonight it s turned violent. we ve had twisters on the ground with watches and warnings in place through 11:00 p.m. tonight. there s a lot to this system, and it s going to affect well over half the nation s population before it s out of here after christmas. it s already impacted air travel. there are reports of fatalities as a result of these tornadoes. we begin tonight with nbc s tom costello. reporter: it was a rare december tornado touching down in southern mississippi, moving right through the town of columbia, knocking out power to thousands, flipping over vehicles and damaging dozens of homes and businesses. we had report
announcer: from nbc news world headquarters in new york, this is nbc nightly news with brian williams. good evening. and on this eve of christmas eve, the weather is making news with so many americans on the move. because of this, the mass of weather east of the rockies to the eastern seaboard, it s going to be a mess for so many. and as of tonight, it has turned violent. we ve had twisters on the ground with watches and warnings in place through 11:00 p.m. tonight. there s a lot to this system, and it s going to affect well over half the nation s population before it s out of here after christmas. it s already impacted air travel. there are reports of fatalities as a result of these tornadoes. we begin tonight with nbc s tom costello. reporter: it was a rare december tornado touching down in southern mississippi, moving right through the town of columbia, knocking out power to thousands, flipping over vehicles and damaging dozens of homes and businesses. we had rep
joe cocker. nightly news begins now. from nbc news world headquarters in new york, this is nbc nightly news with brian williams. good evening. it was so brazen and so scary coming as it did after weeks of anti-police protests in this country, the assassination of two new york city police officers by a deeply disturbed career criminal has had a chilling effect on police departments across this country. and in new york it s causing great tension as the mayor of the nation s largest city is forced to defend himself against charges that he has not been supportive enough of those whose job it is to protect and serve. it s where we begin tonight with nbc s stephanie gosk in brooklyn. stephanie, good evening. reporter: hey, good evening, brian. tonight, the new york police commissioner says there s been a number of unsubstantiated copycat threats against police. nbc news has learned that on the night of this murder the chief patrol reached out to all precincts and asked po