Wildland Fire‎ > ‎

Wildland Fire Links

Wildland Fire Links

Fire Intelligence: Northern Rockies Coordination Center
Interface Mitigation:  Firewise.org
National Interagency Fire Center: 
National Incident Management Situation Report by NIFC (pdf)
Smokey the Bear Web Site:  Fire Science and Kids Games
Fuel Moisture Charts
10 Hour Fuels -- Moisture content of dead sticks 1/4" - 1" in diameter.
            100 Hour Fuels -- Moisture content of 1" - 3" diameter fuels.
            1000 Hour Fuels -- Moisture content of big fuels > 3" diameter.
            Haines Atmosphere Stability Index -- Map showing potential for large fire growth.
Wildfire Lessons: Six Minutes for Safety
FEMA Wildfire Website
Living with Fire in Gallatin County 15 minute video (15 Mb)

Explanation of Fire Weather Acronyms and Terms

Fire Weather Watch =
the potential exists for severe fire weather in the near future, usually 12-72 hours in advance of expected onset of RED FLAG conditions.
Red Flag Warning =
imminent danger of severe fire weather or when severe fire weather already exists.  Generally given 24 hours before conditions exist.
Red Flag Conditions:
1.  Dry thunderstorm activity during an extremely dry period.
2.  Winds increase to 20 mph or higher or change direction abruptly due to approaching or passing cold front, squall line etc.
3.  Unusually hot and dry conditions (RH below 20%).
4.  Combination of conditions listed above.
5.  Forecaster foresees a change in weather resulting in sufficient increase in fire danger.

= Lightning Activity Level, is used for computation of lightning risk.  The index runs on a scale from 1 to 6 with 1 being no thunderstorms or building cumulus, 5 meaning numerous thunderstorms and 6 indicating a RED FLAG situation.
= Chance of Wetting Rain, is a percentage figure use to indicate possible rain. The figure will not be mentioned if below 10%.  Wetting Rain is a fall or 0.10 inches or more in a major area.
RH =
Relative Humidity the expected minimum and maximum values, i.e. minimum RH 15 to 20 percent.  RH below 20% is considered very dry.
Haines Index
= a stability index ranging from 1 to 6.  It correlates relates very well with large fire growth.  The Haines Index is not a fire danger rating system. It should be used for existing fires or new fire starts.  Caution: Wind is not factored into the Haines Index.  2-3 = very low, 4 = low, 5 = moderate, 6 = high.  Note: pay close attention to Haines Index 5 and 6.