What the National Weather Service calls a crippling late season winter storm is headed for the Texas Panhandle and western Oklahoma tonight through early Saturday. Blizzard conditions are possible, as 6 to 12 inches of snow is  forecast, along with winds gusting to as high as 50 mph. The Weather Service says snow drifts of 10 to 20 feet may develop by Saturday morning. During the day Friday, whiteout conditions (zero visibility) may occur at times. Travel is discouraged once the storm begins, and the Weather Service cautions that attempting to travel could lead to life-threatening hazards in the whiteout conditions. We don't expect snow here in the News10 area, but a sharp change to colder weather will arrive by late Friday into Saturday.