they follow the julian calendar instead of the gregorian. >> it's bitterly cold around bethlehem right now. temperatures have dipped ahead of a crucial storm moving in as we speak. our resident expert joins us. there's a storm coming in. how bad is it likely to be over there. >> it's going to produce a lot of snow. some of our models say jerusalem could get as much as ten inches in a few of these spots. we're talking about significant snow accumulations across portions of israel. 25 centimeters. it doesn't happen every single day, but we saw that last year which is among the most we've seen in decades across the region. out across portions of lebanon into jordan many many upwards of 3 million displaced across this region. syrian refugees in makeshift shelters across the region. look at the roof tops you know the winds will be powerful. a lot of people are going to be impacted across dozens of camps across this region. winds, 50 60 kilometres per hour. enough to cause a lot of damage