LANDFIRE 2024 Update (ver. 2.0, March 2026)

This product suite maintains LANDFIRE's ongoing goal to release annual updates every year that are current to the previous year. This means LF 2024 accounts for disturbances up through Fiscal Year 2024 and is being released in 2025. The releases are intended to provide critical, up-to-date information ahead of the fire season for areas of the United States prone to large devastating wildfires. LF 2024 begins with the Alaska release in the spring, followed by the Southwest (SW) and Northwest (NW) GeoAreas of the Conterminous United States (CONUS) in the summer, and wraps up with the release of full CONUS extent and Hawaii and Puerto Rico and the US Virgin Islands in the fall.

In LF 2024 disturbance products continue to leverage agency-submitted data and analyst verification of multiple satellite change detection techniques. The vegetation products are updated using rulesets similar to LF 2020 Update (LF 2020) and LF 2022 Update (LF 2022) but only for 2024 disturbances since prior disturbances were brought current using machine learning and 2023 satellite imagery during the LF 2023 Update (LF 2023). The fuels products are updated for 10 years of disturbance using rulesets similar to LF 2020, LF 2022, and LF 2023. In addition, vegetation and fuels products include updates in both burnable and non-burnable agricultural lands.


Improvements Featured in the LF 2024 Update
The Annual Disturbance attribute table (legend) has been re-worked to modernize it and make improvements. The crosswalk between past and current disturbance years can be downloaded here (automatically downloads .xlsx). This impacts all 3 Annual Disturbance products that LANDFIRE delivers throughout the year: Limited, Preliminary, and Final. To learn more, read Reconstructing the Annual Disturbance Legend: A Record of Change.
Alaska Preliminary and Final Annual Disturbance products will now use imagery to estimate severity (High, Moderate, Low, and No severity) similar to CONUS. Severity assignments from fire programs such as MTBS, RAVG, and BARC will continue to be used and prioritized.
In LF 2024 disturbance products continue to leverage agency-submitted data and analyst verification of multiple satellite change detection techniques. The vegetation products are updated using rulesets similar to LF 2020 Update (LF 2020) and LF 2022 Update (LF 2022) but only for 2024 disturbances since prior disturbances were brought current using machine learning and 2023 satellite imagery during the LF 2023 Update (LF 2023). The fuels products are updated for 10 years of disturbance using rulesets similar to LF 2020, LF 2022, and LF 2023. In addition, vegetation and fuels products include updates in both burnable and non-burnable agricultural lands.

First release: January 2026
Revised: March 2026 (ver. 1.1)


Improvements Featured in the LF 2024 Update
The Annual Disturbance attribute table (legend) has been re-worked to modernize it and make improvements. The crosswalk between past and current disturbance years can be downloaded here (automatically downloads .xlsx). This impacts all 3 Annual Disturbance products that LANDFIRE delivers throughout the year: Limited, Preliminary, and Final. To learn more, read Reconstructing the Annual Disturbance Legend: A Record of Change.
Alaska Preliminary and Final Annual Disturbance products will now use imagery to estimate severity (High, Moderate, Low, and No severity) similar to CONUS. Severity assignments from fire programs such as MTBS, RAVG, and BARC will continue to be used and prioritized.