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Wildfire Suppression Difficulty Index 97th Percentile 2026 (Image Service)
Wildfire Suppression Difficulty Index (SDI) 97th Percentile is a rating of relative difficulty in performing fire control work under regionally appropriate fuel moisture and 20 mph uphill winds (@ 20 ft); Wildfire Suppression Difficulty Index (SDI) 90th Percentile is a rating of relative difficulty in performing fire control work under regionally appropriate fuel moisture and 15 mph uphill winds (@ 20 ft). Wildfire Suppression Difficulty Index (SDI) 80th Percentile is a rating of relative difficulty in performing fire control work under regionally appropriate fuel moisture and 10 mph uphill winds (@ 20 ft).SDI factors in topography, fuels, expected fire behavior under prevailing conditions, fireline production rates in various fuel types with and without heavy equipment, and access via roads, trails, or cross-country travel. SDI does not account for standing snags or other overhead hazards to firefighters, so it is not a firefighter hazard map. It is only showing in relative terms where it is harder or easier to perform suppression work.
Resources
3 resources available
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ArcGIS Hub Dataset
WEB PAGE -
ArcGIS GeoService
ARCGIS GEOSERVICES REST API -
ISO-19139 metadata
TEXT/XML
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "005:96" ] |
| contactPoint |
{ "fn": "USFSEnterpriseContent", "@type": "vcard:Contact", "hasEmail": "mailto:SM.FS.data@usda.gov" } |
| description | <div style='text-align:Left;'><div><div><p><span>Wildfire Suppression Difficulty Index (SDI) 97th Percentile is a rating of relative difficulty in performing fire control work under regionally appropriate fuel moisture and 20 mph uphill winds (@ 20 ft); Wildfire Suppression Difficulty Index (SDI) 90th Percentile is a rating of relative difficulty in performing fire control work under regionally appropriate fuel moisture and 15 mph uphill winds (@ 20 ft). Wildfire Suppression Difficulty Index (SDI) 80th Percentile is a rating of relative difficulty in performing fire control work under regionally appropriate fuel moisture and 10 mph uphill winds (@ 20 ft).</span></p><p><span /></p><p><span>SDI factors in topography, fuels, expected fire behavior under prevailing conditions, fireline production rates in various fuel types with and without heavy equipment, and access via roads, trails, or cross-country travel. SDI does not account for standing snags or other overhead hazards to firefighters, so it is not a firefighter hazard map. It is only showing in relative terms where it is harder or easier to perform suppression work.</span></p></div></div></div> |
| distribution |
[ { "@type": "dcat:Distribution", "title": "ArcGIS Hub Dataset", "format": "Web Page", "accessURL": "https://data-usfs.hub.arcgis.com/datasets/usfs::wildfire-suppression-difficulty-index-97th-percentile-2026-image-service", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "ArcGIS GeoService", "format": "ArcGIS GeoServices REST API", "accessURL": "https://imagery.geoplatform.gov/iipp/rest/services/Fire_Aviation/USFS_EDW_SAB_WildfireSuppressionDifficultyIndex97thPerc/ImageServer", "mediaType": "application/json" }, { "@type": "dcat:Distribution", "title": "ISO-19139 metadata", "accessURL": "https://www.arcgis.com/sharing/rest/content/items/20d34607640d4cf3a2811473a101f0fd/info/metadata/metadata.xml?format=iso19139", "mediaType": "text/xml", "conformsTo": "https://www.isotc211.org/2005/gmi" } ] |
| identifier | https://www.arcgis.com/home/item.html?id=20d34607640d4cf3a2811473a101f0fd |
| issued | 2022-12-16 |
| keyword |
[ "SDI", "fire suppression", "fuels", "landscape", "wildfire" ] |
| landingPage | https://data-usfs.hub.arcgis.com/datasets/usfs::wildfire-suppression-difficulty-index-97th-percentile-2026-image-service |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2026-06-04 |
| programCode |
[ "005:059" ] |
| progressCode | onGoing |
| publisher |
{ "name": "U.S. Forest Service", "source": "USFS Chief Information Office, Enterprise Data Warehouse" } |
| spatial | -127.9035,22.8855,-65.3287,51.6127 |
| theme |
[ "geospatial" ] |
| title | Wildfire Suppression Difficulty Index 97th Percentile 2026 (Image Service) |
