Wildfire

Wildfires are unplanned fires that occur in wildlands such as forest, rangelands or grasslands. These extreme events are common in the Western U.S., usually occurring in summer and fall. Wildfire season is defined by the dates of the first large fire and the last large fire control. Since the 1970s, the wildfire season in western states has extended from 5 months to over 7 months in length. Since the 1980s, the annual number of large fires and area burned has significantly increased, with a sizable proportion of the increase in fire activity occurring in the forests of the Northern Rocky Mountains, followed by forests in the Pacific northwest and southwest. In addition, the average burn time of individual fires has grown from 6 days between 1973 and 1982, to 52 days between 2003 and 2012. Increases in large fire activity and area burned have been driven by rising temperatures, reduced winter snowpack, earlier snowmelt, reduced summer precipitation and increased evaporation. Under climate change we can expect the wildfire activity to increase as temperatures continue to warm, lengthening the fire season further, and as drought continues to afflict wildland ecosystems.

Smoke from fire can reduce air quality by releasing fine particulates that are harmful to human health. To help track and communicate risks related to smoke, some communities have air quality monitoring stations. Communities without air quality monitoring stations often receive…

Wildfires caused by humans, climatic shifts, and increases in fire-prone vegetation are a growing issue within the U.S. affiliated Pacific Islands (USAPI). Island wildfires might burn a smaller area than the fires we see in the mainland U.S. but relatively speaking, they burn a…

This page is intended to provide links to state and regional level wildfire resources in the Southwest Climate Hub mainland states. Most of the resources listed here represent interagency (Federal, State, and Local) partnerships - wildfire does not recognize political…

2019 has proven to be an extreme year weather-wise here in the Midwest--from extreme cold in January, the Bomb Cyclone in March, and tornadoes in April to extensive rain and subsequent flooding in May and June. The Midwest states are no strangers to disaster. As we look back on…

The Reforestation Dialogues and Symposium, a two-day event held in November 2018 organized by U.S. Forest Service Region 5 and the USDA California Climate Hub, was designed to promote co-concept generation and co-production around the current challenges and opportunities related…

National National Interagency Fire Center InciWeb Interagency Wildland Fire Air Quality Response Program Wildfire Smoke: A Guide for Public Health Officials Smoke-Ready Toolbox for Wildfires National Weather Service Air Quality Forecast Region-wide AIR PACT Air Quality…

Changes in climate and extreme weather are already increasing challenges for agriculture. This technical bulletin was developed specifically to meet the unique needs of agricultural producers, and provide educators and service providers in the Midwest and Northeast…