Tracking US wildfires in maps and charts

Tracking US Wildfires Through Maps and Charts

Tracking US wildfires in maps and charts – Wildfires in the U.S. have scorched millions of acres and razed thousands of homes annually, as reported by the National Interagency Fire Center. This dynamic visualization provides real-time updates on active fires and their influence on air quality across the nation. Information is refreshed regularly throughout the day, ensuring timely insights for affected communities.

Understanding Fire Trends

A rising global temperature and prolonged droughts have intensified fire seasons, particularly in Western states like California. The frequency and scale of wildfires fluctuate yearly, according to NIFC records. This chart illustrates the current year’s burned acres in comparison to historical data, highlighting seasonal patterns and anomalies.

Active fire locations are mapped using satellite data from the NOAA Hazard Mapping System, while population exposure is calculated via a spatial analysis of 2020 Census data and National Weather Service alerts. The map and table exclude fires older than 30 days, smaller than 10 acres, and those fully contained or intentionally set.

Federal authorities advise residents to review local air quality reports before making health-related decisions during wildfire events. Fine particulate matter in smoke can threaten respiratory health, especially in vulnerable populations.

Monitoring Air Quality in Real Time

Hourly air quality updates are displayed across hundreds of locations using data from AirNow.gov. This table reflects the PM2.5 index, which measures the concentration of tiny particles that can linger in the atmosphere for days. Location names are based on US county and Canadian census division boundaries.

Contributors to this report include senior data and graphics editor Sam Hart and interactive developer Curt Merrill. The data reflects ongoing efforts to track fire activity and its environmental impact, though some figures may be revised as new information emerges or government disruptions occur.