National Predictive Service Areas (PSA) Boundaries

Predictive Service Areas (PSAs) are geographic areas for which national-level fire weather or fire danger services and products are produced by wildland fire agency meteorologists and intelligence staffs in support of resource allocation and prioritization. A PSA boundary defines areas where 2 or more weather elements or National Fire Danger Rating System (NFDRS) indices exist with a high correlation to historical significant fire size. "Significant fires" are the 95th percentile fire size for the PSA. 2/3/2021 - Tabular change made in Alaska to the peninsula where the St. Michael Airport is located. PSA National Code changed from AK14 to AK08 per Nicholas Nauslar, BLM, and Heidi Strader, Fire Weather Program Mgr at Alaska Interagency Coordination Center. Edits by JKuenzi, USFS. 6/20/2020 - PSA dataset attribute table brought into alignment with NWCG Data Standards for Predictive Service Areas. Edits by JKuenzi, USFS.8/3/2019 - Great Basin updated. Edits by DSampson, BLM.

Data and Resources

Additional Info

Field Value
Last Updated July 26, 2021, 23:27 (UTC)
Created July 26, 2021, 22:55 (UTC)
dcat_issued 2019-04-24T19:05:21.000Z
dcat_modified 2021-03-11T15:16:50.000Z
dcat_publisher_name National Interagency Fire Center
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