* IMPACTS: Low humidities, hot temperatures, and high-based thunderstorms with gusty and erratic outflow winds will create erratic fire behavior and potential for new fire starts. * AFFECTED AREA: In North Central WY Fire Zones...274...284. In South Central MT Fire Zones...123...124...125...126...127 128...129. In Southeast MT Fire Zones...130...131...132. In Southeast MT and Northwest SD Fire Zone...133. * COUNTIES AFFECTED: In Central MT...Golden Valley...Musselshell...Wheatland. In North Central WY...Big Horn...Johnson...Sheridan...Washakie. In Northwest SD...Harding. In South Central MT...Big Horn...Carbon...Park...Stillwater Sweet Grass...Yellowstone. In Southeast MT...Carter...Custer...Fallon...Powder River Rosebud...Treasure. In Southwest MT...Gallatin. * WIND: Southwest 10 to 15 mph with gusts to 25 mph. * THUNDERSTORMS: Isolated to scattered afternoon and evening thunderstorms will produce gusty and erratic winds, and spotty rainfall. * HUMIDITY: Minimums of 11 to 19 percent. * TEMPERATURES: Highs of 97 to 107 below 5000 feet, hottest in the east..
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.