The Wildland Fire Interagency Geospatial Services (WFIGS) Group
provides authoritative geospatial data products under the interagency Wildland
Fire Data Program. Hosted in the National Interagency Fire Center ArcGIS Online
Organization (The NIFC Org), WFIGS provides both internal and public facing data,
accessible in a variety of formats.
This service includes perimeters for wildland fire incidents that meet the following criteria:
Categorized in the IRWIN (Integrated Reporting of Wildland Fire Information) integration service as a valid Wildfire (WF), Prescribed Fire (RX), or Incident Complex (CX) record
Has not been declared contained, controlled, nor out
Has not had fire report records completed (certified)
Is not "quarantined" in IRWIN due to potential conflicts with other records
Attribution of the source polygon is set to a Feature Access of Public, a Feature Status of Approved, and an Is Visible setting of Yes
Perimeters are not available for every incident. For a complete set of features that meet the same IRWIN criteria, see the Current Wildland Fire Locations service.
"Fall-off" rules are used to ensure that stale records are not
retained. Records are removed from this service under the following
conditions:
If the fire size is less than 10 acres (Size Class A or B) and fire information has not been updated in more than 3 days
Fire size is between 10 and 100 acres (Size Class C) and fire information hasn't been updated in more than 8 days
Fire size is larger than 100 acres (Size Class D-L) but fire information hasn't been updated in more than 14 days.
Fire size used in the fall off rules is from the IRWIN Daily Acres field.
Fires that are no longer in the Current Wildland Fire Perimeter
service will be displayed in the 2021 Wildland Fire Perimeters to Date
Service.
Criteria were determined by an NWCG Geospatial Subcommittee task group.
Data are refreshed every 5 minutes. Changes in the perimeter source may take up to 15 minutes to display.
Perimeters are pulled from multiple sources with rules in place to ensure the most current or most authoritative shape is used.
Fall-off rules are enforced hourly.
Warning: Please refrain from repeatedly querying the service using a relative date range. This includes using the “(not) in the last” operators in a Web Map filter and
any reference to CURRENT_TIMESTAMP. This type of query puts undue load
on the service and may render it temporarily unavailable.