At least 148 counties in Texas are under either a freezing rain or heavy snow forecast this Thursday, according to the National Weather Service. As of Jan. 9, the NWS’ forecast map places much of North and Central Texas under freezing conditions as Dallas-Fort Worth braces for a possible 2 to 5 inches of snow this week,

The biggest blast of winter weather so far this season pummels the state today, with snow and likely ice for northern parts of Texas and perhaps as far south as the Hill Country.

Nearly half of Thursday’s flights in and out of DFW are canceled Thursday, though crews are treating roads and runways.