Regional Conditions and Fire Behavior, Sept. 21

Statewide Overview: 

• Fire Danger Moderating: Hot and dry conditions are easing with more seasonable temperatures, higher relative humidity, and improved overnight moisture recovery, compressing active burning periods to afternoons/early evenings.

• Fuel & Moisture Status: Heat and drought-impacted fuels remain across most of the state, maintaining low composite fuel moisture. Single or group torching is still likely in brush and timber, particularly around juniper and pine.

• Fire Risk: Large fire potential (greater than 300 acres) is low to moderate with overall significant fire potential rated low. Initial attack success probability is improving statewide.

Central Oklahoma: 

• Fire behavior in grass-dominated fuels will generally stay under 90 feet per minute ROS with 6 to 12-foot flame lengths.

Eastern Oklahoma: 

• Grass ROS is expected to stay under 90 feet per minute, while timber fuels are anticipated around give or take 30 feet per minute ROS with 2.5 to 6-foot flame lengths.

Outlook: 

• Above-normal temperatures will persist as a high-pressure ridge builds back later in the week, though less intense than before.

NE Area – 3 Fires Burned 89.5 Acres (Cause: 1-Escaped Debris, 1-Other, 1-Incendiary) EC Area – 3 Fires Burned 6.3 Acres (Cause: 2-Equipment, 1-Other) SE Area – 27 Fires Burned 1,042.8 Acres (Cause: 9-Equipment, 2-Lightning, 15-Incendiary, 1-Other)