Canadian Forest Fire Danger Rating System R package cffdrs version 1.9.2 This project provides a group of new functions to calculate the outputs of the two main components of the Canadian Forest Fire Danger Rating System (CFFDRS) Van Wagner and Pickett (1985) <https://ostrnrcan-dostrncan.canada.ca/entities/publication/29706108-2891-4e5d-a59a-a77c96bc507c>) at various time scales: the Fire Weather Index (FWI) System Wan Wagner (1985) <https://ostrnrcan-dostrncan.canada.ca/entities/publication/d96e56aa-e836-4394-ba29-3afe91c3aa6c> and the Fire Behaviour Prediction (FBP) System Forestry Canada Fire Danger Group (1992) <https://cfs.nrcan.gc.ca/pubwarehouse/pdfs/10068.pdf>. Some functions have two versions, table and raster based. Software Depends: R (>= 3.5) Imports: data.table, doParallel, foreach, geosphere, methods, parallel, sf, terra Suggests: testthat (>= 3.0.0) Brett Moore <Brett.Moore@nrcan-rncan.gc.ca> Comprehensive R Archive Network (CRAN) Xianli Wang [aut], Alan Cantin [aut], Marc-André Parisien [aut], Mike Wotton [aut], Kerry Anderson [aut], Brett Moore [cre, aut], Tom Schiks [aut], Mike Flannigan [aut] GPL-2 2025-08-22 application/tgz https://CRAN.R-project.org/package=cffdrs doi:10.32614/CRAN.package.cffdrs