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Red Flag Warning
ActiveCrow Indian Reservation/Big Horn Canyon Rec Area; Northern Rosebud/Northern Treasure Counties; Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest; Custer County; Sioux Ranger District Custer National Forest
Status
In Progress
Started about 1 hour ago
Ends
Issued
Severity
Severe
Urgency
Expected
Certainty
Likely
Details
* IMPACTS: Low humidities, hot temperatures, and strong gusty winds will create erratic fire behavior.
* AFFECTED AREA: In North Central WY Fire Zone...274. In South Central MT Fire Zone...129. In Southeast MT Fire Zones...130...131...132. In Southeast MT and Northwest SD Fire Zone...133.
* COUNTIES AFFECTED: In North Central WY...Sheridan. In Northwest SD...Harding. In South Central MT...Big Horn...Carbon...Yellowstone. In Southeast MT...Carter...Custer...Fallon...Powder River Rosebud...Treasure.
* WIND: South 10 to 20 mph with gusts up to 35 mph.
* HUMIDITY: Minimums of 5 to 10 percent. Humidity will be slow to recover overnight.
* TEMPERATURES: 90 to 100 degrees, falling into the upper 60s to 70s overnight. Some locations may remain in the 80s overnight.
* COLD FRONT: Arrives over south central Montana this evening, bringing a shift to breezy northwest winds. The front will reach far southeast Montana early Monday morning. Before the frontal passage, a southeasterly low level jet will produce gusty ridgetop winds (up to 40 mph) and a slow humidity recovery over southeast Montana tonight.
Data from the National Weather Service
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