Red Flag Warning

* IMPACTS: Low humidities, warm temperatures, and gusty winds will create erratic fire behavior.

* AFFECTED AREA: In Southeast MT and Northwest SD Fire Zone...133.

* COUNTIES AFFECTED: In Northwest SD...Harding. In Southeast MT...Carter...Fallon.

* WIND: North 10 to 15 mph with gusts up to 25 mph this afternoon into tonight, becoming 15 to 30 mph with gusts up to 40 mph on Monday.

* HUMIDITY: As low as 10 percent today and 18 percent Monday.

* TEMPERATURES: Up to 98 degrees today and 85 degrees Monday.

* COLD FRONT: A cold front will move through the area tonight. A secondary cold front arrives Monday, increasing wind speeds out of the north.