i'm steve baskerville, cbs news. >>> pope francis left rome this morning to begin a five-day visit to mexico. en route, he'll stop in cuba to hold the first-ever meeting between a pope and a patriarch of the russian orthodox church. >> reporter: pope francis boarded his plane in rome this morning for his big trip to mexico where he'll tackle hot immigration. the streets of mexico city are bustling for last-minute stores are already selling pope francis memorabilia. mexico has the world's second largest catholic population behind brazil. he will celebrate mass on the country's southern and northern borders. workers are already putting the finishing touches on the altar for an outdoor mass in a city that borders billion pass owe, texas. melissa lopez runs a catholic charity that helps migrants are services in el paso. >> the fact he is coming here i think says a lot about him as a human being and about the direction he is wanting to push the catholic church in. >> reporter: propose francis's altar is just across the border and his mass will be available right here from el passo, texas.

meteorologist steve baskerville of our chicago station wbbm is tracking the frigid weather. bitter air, in the week, while they are setting records for warm weather in places like california, but getting back to who is affected as the weekend from international falls to the twin cities, windchills certainly should be advised of being very, very cold, from buffalo to albany, upstate new york, windchills could be anywhere from 20 to 35 below. so it's definitely the top half of the country up in the northern states affected. but from california through arizona, parts of texas, parts of the deep south, almost like spring. single-digit temperatures up in the dakotas. even colder than normal weather around places like charlotte. i'm steve baskerville, cbs news. >>> pope francis left rome this morning to begin a five-day visit to mexico. en route, he'll stop in cuba to hold the first-ever meeting between a pope and a patriarch >> reporter: pope francis boarded his plane in rome this morning for his big trip to mexico where he'll tackle hot button issues, including immigration. the

i'm steve baskerville, cbs news. >>> pope francis left rome this morning to begin a five-day visit to mexico. en route, he'll stop in cuba to hold the first-ever meeting between a pope and a patriarch of the russian orthodox church. the pope's visit includes a trip adriana diaz reports from el pass owe. >> reporter: pope francis boarded his plane in rome this morning for his big trip to mexico where he'll tackle hot button issues, including immigration. the streets of mexico city are bustling for last-minute preparations for the pope's visit. stores are already selling pope francis memorabilia. mexico has the world's second largest catholic population behind brazil. during his trip, the holy father will celebrate mass on the country's southern and northern borders. workers are already putting the finishing touches on the altar for an outdoor mass in juarez, a violent drug city that borders el pass owe. melissa lopez runs a catholic charity that helps migrants are services in el paso. >> the fact he is coming here i think says a lot about him as a human being and about the direction he