8/29/13, 3:10 pm: Montana areas north of Yellowstone will be under a Red Flag Warning Friday

Montana areas north of Yellowstone will be under a Red Flag Warning Friday for increased fire activity. According to the National Weather Service, in Park, Sweet Grass, and Gallatin Counties, low humidities and strong gusty winds may cause strong and erratic fire growth. Winds may gust to 35 mph, with minimum humidities dropping to 12%.