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Fuel Moisture: Fuel Moisture References

Online Resources

National Fuel Moisture Database

NDVI Greenness Resources

1-hr Fuel Moisture (SimpleFFMC – Nelson Model)

Publications

Agee, James K, Wright, Clinton S.  Williamson, Nathan, and Huff, Mark H.; Foliar Moisture Content of Pacific Northwest Vegetation and its Relation to Wildland Fire Behavior; Forest Ecology and Management, 2002.

Burgan, R.E., Estimating live fuel moisture for the 1978 National Fire Danger Rating System—1978, USDA Forest Service. Research Paper, 1979.

Burgan, R.E.; Hartford, R.A., Monitoring vegetation greenness with satellite data, United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1993.

Burgan, Robert E.; Hartford, Roberta A.; Eidenshink, Jeffery C., Using NDVI to assess departure from average greenness and its relation to fire business, U.S. Department of Agriculture, Forest Service, Intermountain Research Station, 1996.

Fosberg, M. A., and J. E. Deeming,  Derivation of the 1- and 10-hour timelag fuel moisture calculations for fire-danger rating, USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1971.

Hirsch, Kelvin G., Canadian Forest Fire Behavior Prediction (FBP) System: User’s Guide, Canadian Forest Service Special Report, 1996.

Jolly, William M., Nemani, R. and Running, S.W., A generalized, bioclimatic index to predict foliar phenology in response to climate, Global Change Biology 11(4), 2005.

Jolly, W. Matt; Hadlow, Ann M.; Huguet, Kathleen, De-coupling seasonal changes in water content and dry matter to predict live conifer foliar moisture content, International Journal of Wildland Fire, 2014.

Jolly, W. Matt, Hintz, J., Kropp, R., and Conrad, E.,  Physiological drivers of the live foliar moisture content ‘spring dip’ in Pinus resinosa and Pinus banksiana and their relationship to foliar flammability, International Conference on Forest Fire Research, 2014.

Jolly, W.M.,  Development of fine dead fuel moisture field references for the Southeastern United States: SimpleFFMC, USDA Forest Service RMRS Fire Sciences Laboratory, 2016.

Nelson R.M., Jr., Prediction of diurnal change in 10-h fuel stick moisture content, Canadian Journal of Forest Research, 2000.

Norum, Rodney A.; Miller, Melanie, Measuring fuel moisture content in Alaska: standard methods and procedures, U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1984.

Rothermel, Richard C., How to predict the spread and intensity of forest and range fires, U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1983.

Schlobohm, P. and Brain, J., Gaining an Understanding of the National Fire Danger Rating System, PMS 932/NFES 2665, National Wildfire Coordinating Group, 2002.

Schroeder, Mark J.,  Ignition probability, USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1969.

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NWCG Latest Announcements

Updated! L-280, Followership to Leadership (Instructor-led) Course

Date: October 3, 2024
Questions? Please contact:
Leadership Committee

NWCG is pleased to announce the updated L-280, Followership to Leadership (Instructor-led) course is now available. L-280 is intended for operational personnel at the Firefighter Type 1 level, and for individuals pursuing Leadership Level 2, New Leader. 

This instructor-led course is a primer on leadership and the second formal course in the Wildland Fire Leadership Development Program. It helps emerging leaders build the confidence, skills, and mindset needed to lead effectively in high-risk environments. 

For more information about leadership development and available courses, visit the Leadership Committee Web Portal.

References:

L-280, Followership to Leadership (Instructor-led)

Wildland Fire Leadership Development Program

Wildland Fire Learning Portal

Equipment Advisory 25-01: Pre-2006 Fire Shelter Degradation and Discontinuation of Use

Date: Sept 26, 2025
Questions? Please contact:
Equipment Technology Committee 

The Equipment Technology Committee (ETC) has released Equipment Advisory 25-01: Pre-2006 Fire Shelter Degradation and Discontinuation of Use. This advisory recommends all pre-2006 fire shelters should be removed from service by January 1, 2026.

This advisory recommends firefighters and fire managers to:

  • Inspect fire shelters immediately
  • Replace and destroy any pre-2006 shelters (identified by white or pink insert label)
  • Order replacements as needed

For further details, please refer to the complete advisory. 

References:

Equipment Advisory 25-01: Pre-2006 Fire Shelter Degradation and Discontinuation of Use

NWCG Fire Inspection Flowchart, PMS 411-1

NWCG Alerts

NEW! S-219, Firing Operations (Blended) Now Available

Date: Sept 11, 2025
Questions? Please contact:
Fuels Management Committee 

The S-219, Firing Operations (Blended) course is now available on the Wildland Fire Learning Portal. Developed through the Incident Performance and Training Modernization (IPTM) effort, this training supports individuals working towards Firing Boss, Single Resource (FIRB) incident qualifications.

This blended course combines online and instructor-led training to provide students with the knowledge and skills required to perform the duties of the FIRB, as described in the NWCG Incident Position Standards for Firing Boss, Single Resource, PMS 350-105.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1, scheduled for January 2026.

References:

S-219, Firing Operations (Blended)

NWCG Firing Boss, Single Resource Position Page

Wildland Fire Learning Portal

NWCG Committees Observe Suicide Prevention Awareness Week: September 7-13, 2025

Date: Sep 5, 2025
Questions? Please contact:
Mental Health Subcommittee

The NWCG Mental Health Subcommittee (MHSC) and Risk Management Committee (RMC) recognize the unique challenges and demands faced by the wildland fire community. The MHSC and RMC know that we are all stronger together and believe in fostering a culture of support, understanding, and resilience.

Suicide Prevention Awareness encourages us to actively connect with and support each other. For more information that could make a difference for yourself or someone else please review the materials and resources provided for the 2025 Suicide Prevention Awareness Week.

References:

2025 Suicide Prevention Awareness Week Materials and Resources