How Forest Fire “Danger” is Measured

This sign found at many Ranger Stations throughout the state, displays the current local fire danger rating. The rating shown on the sign refers to the burning condition list below:

Extreme

Explosive conditions. Fires start easily, burn fiercely and crown readily. Often very difficult or impossible to control during the day. Burning is not recommended, and the town will issue a burn ban.

Very High

Very dangerous conditions. Fires start easily, spread very rapidly, crown and spot. Very difficult to control. Burning is not recommended, and the town will issue a burn ban.

High

Dangerous conditions. Fires start readily from a match or sparks, spread quickly, and spot readily. Difficult to control. Burning is not recommended.

Moderate

Fires start from a match or burning embers, spread quickly in dry grass or leaves. Burn with extreme caution.

Low

Fires will start from an open flame, spread slowly and in absence of wind tend to go out. The safest time to burn.

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