RED FLAG WARNING THROUGH THIS EVENING FOR WESTERN AND MUCH OF CENTRAL NORTH DAKOTA. . RED FLAG WARNING LATE SUNDAY MORNING THROUGH SUNDAY EVENING FOR MUCH OF CENTRAL NORTH DAKOTA AND THE JAMES RIVER VALLEY. .Critical fire weather conditions are expected through this evening across western and much of central North Dakota. Relative humidity values are forecast to fall into the lower to mid teens, combined with south-southwesterly winds sustained as high as 30 mph and gusting to around 45 mph. Any fires that ignite could spread rapidly and become difficult to control. Critical fire weather conditions are expected late Sunday morning through the evening across much of central North Dakota and the James River Valley. Relative humidity values are forecast to fall into the lower to mid teens, with south-southwesterly winds sustained around 30 mph and gusting up to 50 mph. Any fires that ignite could spread rapidly and become difficult to control. The National Weather Service in Bismarck has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 10 PM CDT Sunday. * WINDS. Southerly up to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY. As low as 13 percent. * AFFECTED AREA. Parts of central North Dakota and the James River Valley. * IMPACTS. Any fires that ignite will spread rapidly and become difficult to control or suppress.