Ignition Component

Idabel Broken Bow Wister Talihina Clayton Cloudy Hugo Antlers Lane Durant Wilburton Stigler Sallisaw Webbers Falls Cookson Westville Tahlequah Eufaula McAlester Stuart Centrahoma Tishomingo Holdenville Madill Burneyville Ardmore Newport Fittstown Sulphur Haskell Porter Okmulgee Inola Bixby Tulsa Okemah Seminole Ada Byars Pauls Valley Ringling Hectorville Bristow Shawnee Ketchum Ranch Washington Norman Chandler Spencer OKC East Waurika Chickasha Acme Oilton Minco Guthrie Walters Apache Grandfield Medicine Park Fort Cobb Tipton Altus Hobart El Reno Hinton Perkins Marena Stillwater Lake Carl Blackwell Pawnee Red Rock Marshall Kingfisher Watonga Weatherford Bessie Jay Pryor Skiatook Wynona Burbank Miami Vinita Nowata Talala Copan Foraker Newkirk Blackwell Mangum Hollis Erick Putnam Butler Cheyenne Breckinridge Lahoma Fairview Seiling Camargo Medford Cherokee Alva May Ranch Freedom Woodward Arnett Buffalo Slapout Beaver Hooker Goodwell Boise City Kenton Elk City Valliant Eva Yukon
The Ignition Component (IC) is equal to the probability (0-100%) of a firebrand producing a fire that will require suppression action. It says nothing about the intensity of the fire, which is indicated by the Burning Index (BI) value. IC is another fire danger index calculated by the Oklahoma Fire Danger Model. An IC of 100 means that every firebrand will cause a fire requiring suppression action if it contacts a receptive fuel. Likewise an IC of 0 would mean that no firebrand would cause a fire requiring suppression action under those conditions. Note the emphasis is on action. The key is whether a fire will result that requires a fire manager to make a decision. The Ignition Component is more than the probability of a fire starting; it has to have the potential to spread. Therefore, Spread Component (SC) values are entered into the calculation of IC. If a fire will ignite and spread, some action or decision is needed. Ignition Component is a function of the fuel model being used, the live and dead fuel loads, the live and dead fuel moistures, and the weather conditions. If the fuel types and loads are substantially different than those in the fuel model being used, there will be inaccuracies. The IC map is updated every 15 minutes.