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Search for Current Fire and Smoke Conditions in a city, state or area.
(e.g. "Seattle, WA", "Washington", "Smith River, CA")
The Fire and Smoke Map displays information on ground level air quality monitors recording fine particulates from smoke and other sources, as well as information on fires, smoke plume locations, and special statements about smoke issued by various sources. See the Data & Limitations page for more information.
This map is designed to:
The location of interest is set through geolocation for systems that have location services enabled; otherwise it can be set by either searching for a location by name or by dragging the blue circle to the location of interest.
Air Quality (PM2.5) information is shown as circles, fire detections as fire icons, and smoke plume locations as grey polygons. The currently set location is shown as a flashing blue circle. See the Air Quality Information and Fire & Smoke Information pages for more information.
Sidebar Three icons in the upper left corner of the map give you access to information about conditions near your current location. Click on the first icon (circle) to see air quality monitoring sites closest to your location, color coded by Air Quality Index. Click on the next icon (flame) to learn more about nearby fire detections. Click on the third icon (smoke) to learn more about nearby smoke plumes.
Refresh Buttons The map will continue to display the data available at the time it was originally loaded. To refresh the data with the latest information press the button in the lower left corner. Refreshing more frequently than every 15 minutes is not generally recommended.
Zoom Click the plus to zoom in closer to your location, click the minus to zoom out.
This map is a collaborative effort between the U.S. Forest Service led Interagency Wildland Fire Air Quality Response Program (IWFAQRP) and the U.S. Environmental Protection Agency. Development work was done through an agreement with the University of Washington’s School of Environmental and Forest Sciences. This site relies on data provided from a number of sources (see Data and Limitations page for more information on data providers).
Project Lead: Sim Larkin, USFS Lead Developer: Stuart Illson, UW Additional Development: Jonathan Callahan, Mazama Science; Joel Dubowy, UW; Chris Wilkes, EPA Steering Group: Phil Dickerson, Tami Laplante, Susan Stone, Lori Tussi, Michelle Wayland, Rob Wildermann, EPA; Pete Lahm, USFS Many thanks to: Marlin Martinez, UW; Janice Peterson, USFS; WIM Team (USGS); All those who provided feedback.
The Fire and Smoke Map shows fine particle pollution (PM2.5) NowCast AQI data. AirNow monitors are operated by state, tribal, or local monitoring agencies. Temporary, portable monitors are deployed near large, active wildfires by US Forest Service and state and local agencies.
The AQI is EPA’s index for reporting air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI can be calculated for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen dioxide. See more information about the AQI.
The AQI used in the Fire and Smoke Map is specifically focused on fine particulate matter (PM) known as PM2.5. PM stands for particulate matter (also called particle pollution), the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, soot, or smoke, are large or dark enough to be seen with the naked eye. Others are so small they can only be detected using an electron microscope. PM2.5 specifically refers to fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller. See more information about PM2.5 or the Air Quality Guide for Particle Pollution
NowCast refers to an algorithm that is applied to the PM2.5 data to estimate the AQI for the current hour. The NowCast AQI shows air quality for the most current hour available by using a calculation that involves multiple hours of past data. The NowCast uses longer averages during periods of stable air quality and shorter averages when air quality is changing rapidly, such as during a wildfire. See more information about the NowCast AQI.
|Daily AQI Color||Levels of Concern||Values of Index||Description of Air Quality|
|Green||Good||0 to 50||Air quality is satisfactory, and air pollution poses little or no risk.|
|Yellow||Moderate||51 to 100||Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.|
|Orange||Unhealthy for Sensitive Groups||101 to 150||Members of sensitive groups may experience health effects. The general public is less likely to be affected.|
|Red||Unhealthy||151 to 200||Some members of the general public may experience health effects; members of sensitive groups may experience more serious health effects.|
|Purple||Very Unhealthy||201 to 300||Health alert: The risk of health effects is increased for everyone.|
|Maroon||Hazardous||301 and higher||Health warning of emergency conditions: everyone is more likely to be affected.|
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
Fire detections are based on information from the NOAA Hazard Mapping System (HMS) and generally reflect automated satellite hotspot detections. These detections are based on higher than normal temperatures visible to the satellite from a location on the ground. This represents the detection of above normal temperatures, and does not necessarily reflect the presence of an actual wildland fire, as false detections have been known to occur. Additionally, depending on the satellite the specific location covered by the image pixel may be 1 or more kilometers in resolution. Additionally geolocation error can occur due to other reasons. For large fires, multiple satellite detections may occur for the same fire. Data is downloaded every 15 minutes from the HMS system.
Smoke plume locations are based on information from the NOAA Hazard Mapping System based on polygons drawn around smoke detected in satellite imagery. In general this represents the presence of smoke in the overall column of air at those locations. However, it may not correspond to smoke being present at ground level; the smoke could be aloft instead. Additionally it will not represent smaller smoke plumes or smoke plumes otherwise not detected by the satellite images (e.g. due to cloud cover, or because they have occurred after the satellite image was taken). The Hazard Mapping System updates these plumes every few hours, and data is downloaded every 15 minutes from the HMS system
This section on the map will show specialized smoke outlooks and other specialized smoke information when and where they are available. Specifically, this will include smoke outlooks produced by deployed Interagency Wildland Fire Air Quality Response Program Air Resource Advisors.
Local air quality conditions are shown as the nearest monitors to the location of interest. Click on one of the monitors to see the measurements and conditions at that monitor.
Local fire conditions indicate whether there is presence of a potential fire within a 150 mile radius of the user defined position (either set through geolocation or manually). Presence as well as spatial measures such as distance and directionality should not be used for tactical decisions. Fire detections are based on algorithms that have been known to have false detections.
Local smoke plume conditions indicate whether there is presence of a satellite detected smoke plume either at the user defined position (either set through geolocation or manually), or within a 200 mile radius. Presence as well as spatial measures such as distance and directionality should not be used for tactical decisions.
See the Data & Limitations page for more information on data sources and potential issues.
PM2.5 data is collected through ground particulate monitors owned and maintained by various entities, including federal, state, tribal, and local agencies. Data for permanent networks is obtained through the AirNow system; data for temporary networks is obtained through the AirSis and the Western Regional Climate Center data feeds. Most monitors report out hourly.
Fire detections and smoke plume locations are obtained through the U.S. National Oceanic and Atmospheric Administration (NOAA)’s Hazard Mapping System (HMS) that integrates data from multiple satellite systems. This information is pulled from the Hazard Mapping System (HMS) Fire and Smoke products and should be current every 15 minutes upon refresh.
Special smoke statements are issued by the U.S. Forest Service led Interagency Wildland Fire Air Quality Response Program.
Data are provisional and are subject to revision until thoroughly reviewed and approved.
Data may be delayed, unavailable, or in error due to measurement problems, data transmission issues, and/or data aggregation system system issues.
Real-time data relayed by satellite or other telemetry are automatically screened to not display improbable values until they can be verified.
Both the fire detections and the smoke plume data generated by the Hazard Mapping System (HMS) note that "The information on fire position should be used as general guidance and for strategic planning. Tactical decisions, such as the activation of a response to fight these fires and evacuation efforts, should not be made without other information to corroborate the fire's existence and location."
Provisional data may be inaccurate due to instrument malfunctions or physical changes at the measurement site. Subsequent review based on field inspections and measurements may result in significant revisions to the data.
The data are being provided to meet the need for timely best science and are released on the condition that neither the USFS nor the U.S. Government may be held liable for any damages resulting from authorized or unauthorized use of the information. Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences.
Information concerning the accuracy and appropriate uses of these data or concerning other air quality data may be obtained through the EPA.
Frequently Asked Questions section is in development and will be coming soon.
For more information about the Fire & Smoke Map Service please contact AirFire
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