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Models, Introduction

NFDRS header graphic. Decorative.

The NFDRS 2016 Models

The National Fire Danger Rating System -version 2016 (NFDRS2016) brings together a series of mathematical models that produce an array of outputs which represent fire danger across the landscape for the purpose of giving land managers a tool to aid in tactical and strategic decision making.

The NFDRS2016 requires the following data sources in order to generate meaningful analysis outputs:

  1. Weather Data
  2. Fire Occurrence Data
  3. Weather Station Metadata

The NFDRS2016 uses the following models to generate meaningful outputs:

  1. The Nelson model
  2. The Growing Season Index (GSI)
  3. Five Fuel Models

NFDRS 2016 Models organizational chart.

 

 

NWCG Latest Announcements

NWCG Standards for Wildland Fire Chainsaw Operations, PMS 212, and Next Generation Position Task Book for Basic Faller Are Now Available

Date: April 14, 2025
Questions?  Please contact:
Hazard Tree and Tree Felling Subcommittee

The updated NWCG Standards for Wildland Fire Chainsaw Operations, PMS 212, and NWCG Position Task Book for Basic Faller (FAL3), PMS 311-19 are now available.

The NWCG Standards for Wildland Fire Chainsaw Operations, PMS 212 includes position standards designed to be used in conjunction with the Next Generation Position Task Book (Next Gen PTB). The Next Gen PTB for Basic Faller (FAL3) includes an evaluation guide with suggested rating elements to consider when assessing trainees.

References:

NWCG Standards For Wildland Fire Chainsaw Operations, PMS 212

NWCG Position Task Book for Basic Faller (FAL3), PMS 311-119

NWCG Basic Faller (FAL3)

RMC Memo 25-01: Summary of Updates to Safety Officer Positions

Date: April 9, 2025
Questions?  Please contact:
RMC Member Eric Fransted

The Risk Management Committee (RMC) serves as the position steward for all Safety Officer incident positions and continues to improve position standards, training, and naming conventions. The implementation of Complex Incident Management (CIM) required changes to position titles. RMC collaborated with the NWCG Incident Position Standards Committee (IPSC) to propose and implement these updates. 

References:

RMC Memo 25-01: Summary of Updates to Safety Officer Positions 

NWCG Position Catalog

Updated, NWCG Guide to Wildland Fire Origin and Cause Determination, PMS 412

Date: April 8, 2025
Questions?  Please contact:
Wildland Fire Investigation Subcommittee

PMS 412 provides guidance for wildland fire investigations. This guide outlines recommended procedures, practices, techniques, and methods to promote a systematic approach. The last update to this publication was in 2016.

References:

NWCG Guide to Wildland Fire Origin and Cause Determination PMS 412

Updated NWCG Standards for Airtanker Base Operations, PMS 508

Date: March 31, 2025
Questions?  Please contact:
Airtanker Base Operations Unit

The updated NWCG Standards for Airtanker Base Operations (SABO), PMS 508 standardizes operations and procedures at interagency airtanker bases to ensure safe, efficient, and effective operations in support of interagency goals and objectives.

References:

NWCG Standards for Airtanker Base Operations, PMS 508