2003 Southern California Fire Assessments: Threat by WHR13 Tables
Fire Threat for major groupings of the California Wildlife Habitat Relationships System (CWHR) as defined by FRAP (all burned acres), in Acres.Map of Fires Overlaid on WHR13 Landcover (14.29 MB)
Disclaimer
FRAP/RSL make no representations or warranties regarding the accuracy of data or maps. In particular, data relating to recently burned areas reflect generalized perimeters and represent coarse, preliminary assessments of the fire perimeters, and fire sizes, and may change or not correspond to other officially reported acreage. Areas close to, or inside of the perimeters represented here may or may not have actually burned. The user will not seek to hold either the Federal or State Government, nor the US Forest Service or CDF liable under any circumstances for any damages with respect to any claim by the user or any third party on account of or arising from the use of data or maps.October 2003 Southern California Fires
| WHR13 Name | Little or No Threat | Moderate | High | Very High | Extreme | All |
|---|---|---|---|---|---|---|
| Agriculture | 6,613 | 642 | 603 | 2,916 | 309 | 11,083 |
| Barren/Other | 1,688 | 341 | 576 | 2,520 | 759 | 5,884 |
| Conifer Forest | 168 | - | 7,176 | 27,095 | 6,267 | 40,706 |
| Conifer Woodland | - | - | 376 | 492 | 32 | 899 |
| Desert Shrub | 32 | 101 | 336 | 1,008 | 343 | 1,821 |
| Hardwood Forest | 334 | 166 | 2,970 | 17,369 | 7,687 | 28,526 |
| Hardwood Woodland | 929 | 848 | 2,231 | 33,186 | 13,240 | 50,434 |
| Herbaceous | 1,752 | 2,387 | 4,342 | 43,194 | 2,345 | 54,020 |
| Shrub | 6,590 | 4,354 | 27,972 | 255,509 | 212,409 | 506,835 |
| Urban | 2,459 | 5,624 | 828 | 6,993 | 1,018 | 16,922 |
| Water | 3,227 | 7 | 35 | 277 | 67 | 3,613 |
| Wetland | 620 | 15 | 131 | 477 | 67 | 1,310 |
| All | 24,412 | 14,485 | 47,575 | 391,034 | 244,543 | 722,049 |
About two-thirds of all burned area was shrub vegetation. About 10% of the burned area was conifer or hardwood forests. Nearly half of the shrub vegetation was rated as an extreme fire threat, while grassland (herbaceous) rarely has more than a very high fire threat. Forest types are typically between grass and shrub types in their fire threat ratings.
For more information, please contact:
Dave Sapsis
Wildland Fire Scientist
CDF Fire and Resource Assessment Program (FRAP)
PO Box 944246
Sacramento, CA 94244-2460
916.445.5369
dave.sapsis@fire.ca.gov