Understory

Author: Brandon McWilliamsThis regular drought status update is produced using the most recent data and cover a seasonal range of outlooks, including current conditions, seasonal drought outlooks, and severe fire potential. It is broken down by Forest Service region. This update covers conditions for July 2025, and projections through September, 2025.

This regular drought status update is produced using the most recent data and cover a seasonal range of outlooks, including current conditions, seasonal drought outlooks, and severe fire potential. It is broken down by Forest Service region. This update covers conditions for April 15, 2025, and projections through July, 2025.

Author: Brandon McWilliamsThis fact sheet offers a general overview of the various types of drought, their effects, and some of the factors that contribute to drought in the West. It offers a good starting point for those who are less familiar with drought and drought effects, or want to learn more about how drought is monitored in the U.S.

Author: Brandon McWilliamsThis fact sheet provides a summary of the interaction between drought and invasive plants on forest and rangeland health in the Western U.S. It describes invasive species effects overall and highlights a few particularly noteworthy species.

Author: Brandon McWilliamsThis fact sheet summarizes the interactions between drought and wildfire on Western U.S. forests and rangelands, including drying fuels, reducing environmental moisture, and stressing water infrastructure.

Author: Brandon McWilliamsThis fact sheet offers a summary of the interaction between drought and forest insects in the Western U.S.

This manual documents data collection procedures, codes, standards, and definitions used by the Pacific Northwest Research Station, Forest Inventory and Analysis (PNW-FIA) program in the 2025 annual forest inventory of Alaska.

This document describes the standards, codes, methods, and definitions for urban Forest Inventory and Analysis (FIA) field data items. It describes FIA field procedures that are consistent and uniform across urban FIA units nationwide, along with some regionally-specific variables. Individual programs may add regional variables that support their core program but may not change or add to the nationally standard urban FIA requirements. Unless otherwise noted, the items in this field guide will be collected by all FIA units as specified. Items or codes specified as optional are not required by i...

This fact sheet summarizes research on burn severity patterns of the 2020 Labor Day Fires in Oregon. The fact sheet covers information regarding burn severity patterns and drivers and discusses post-fire delayed tree mortalityFor more information visit Collaborative Postfire Research and Monitoring: Supporting Oregon’s Natural and Cultural Resources Recovery Task Force.

This manual documents data collection procedures, codes, standards, and definitions used by the Pacific Northwest Research Station, Forest Inventory and Analysis (PNW-FIA) program in the 2025 periodic forest inventory of the Republic of Palau.