Back to Forest Conditions & Restrictions


CLASS 1: Low Danger (L)

Fuels do not ignite readily from small firebrands, although a more intense heat source – such as lightning – may start many fires in duff or punky wood. Fires in open or cured grassland may burn freely a few hours after rain, but wood fires spread slowly by creeping or smoldering and burn in irregular fingers. There is little danger of spotting.

CLASS 2: Moderate Danger (M)

Fires can start from most accidental causes, but with the exception of lightning in some areas, the number of starts is generally low. Fires in open cured grassland will burn briskly and spread rapidly on windy days. Woods fires spread slowly to moderately fast. The average fire is of moderate intensity, although heavy concentrations of fuel – especially draped fuel -- may burn hot. Short-distance spotting may occur, but is not persistent. Fires are not likely to become serious and control is relatively easy.

CLASS 3: High Danger (H)

All fine dead fuels ignite readily and fires start easily from most causes. Unattended brush and campfires are likely to escape. Fires spread rapidly and short-distance spotting is common. High intensity burning may develop on slopes or in concentrations of fine fuel. Fires may become serious and their control difficult, unless they are hit hard and fast while small.

CLASS 4: Very High Danger (VH)

Fires start easily from all causes and immediately after ignition, spread rapidly and increase quickly in intensity. Spot fires are a constant danger. Fires burning in light fuels may quickly develop high-intensity characteristics - such as long-distance spotting - and fire whirlwinds, when they burn into heavier fuels. Direct attack at the head of such fires is rarely possible after they have been burning more than a few minutes.

CLASS 5: Extreme (E)

Fires under extreme conditions start quickly, spread furiously and burn intensely. All fires are potentially serious. Development into high-intensity burning will usually be faster and occur from smaller fires than in the Very High Danger class (4). Direct attack is rarely possible and may be dangerous, except immediately after ignition. Fires that develop headway in heavy slash or in conifer stands may be unmanageable while the extreme burning condition lasts. Under these conditions, the only effective and safe control action is on the flanks, until the weather changes or the fuel supply lessens.


There are 4 stages of fire restrictions. When restrictions are in place these are the regulations that are to be followed during these times.

  Stage I (First Level)
·           No smoking outside of vehicles, or buildings
·           No open campfires outside of developed sites
·           No fireworks 

  Stage II (2nd Level ) Stage I Restrictions PLUS
·           Prohibitions for explosives, chainsaw or other internal combustion engines, welding
·           Prohibition for using a motor vehicle off forest development roads
·           Further restrictive use of campfires

 Stage III (3 rd Level)—Stage II Restrictions PLUS
·           The closure of specific areas of the Forest (as detailed in the Closure Order)

Stage IV (4 th Level)—Stage III Restrictions PLUS
·           Full forest closures (as detailed in the Closure Order)

For More Information: 
 Lincoln National Forest   

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