Extreme Wildfire Environments and Their Impacts Occurring with Offshore-Directed Winds across the Pacific Coast States
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields



Document Data
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page


Extreme Wildfire Environments and Their Impacts Occurring with Offshore-Directed Winds across the Pacific Coast States

Filetype[PDF-4.15 MB]


  • Journal Title:
    Weather, Climate, and Society
  • Personal Author:
  • NOAA Program & Office:
  • Description:
    Wildfires that posed an immediate threat to life and property during the period 1933–2021 were examined across the Pacific Coast states of California, Oregon, and Washington. Such fires were identified in local, state, and federal data archives and other sources that yielded 150 events for analysis. A subset of those fires was sorted into one of two synoptic-scale patterns associated with an autumn-season offshore-directed low-level flow regime and a summer-season non-offshore-directed low-level flow regime. Proximity analysis soundings near the offshore wind-driven wildfires frequently displayed ingredients that supported gap and mountain-wave development, which were responsible for generating fast-moving wildfires, long-distance spotting, and firebrand showers that resulted in loss of life and property. Paradoxically, the most extreme combinations of strong winds and low relative humidity were observed near high-population centers in Southern California, yet the most destructive and deadly fires were in less-populated regions of northern California and western Oregon. Additional analysis of 40 Fire Behavior Fuel Models data, housing development in the wildland–urban interface, and U.S. census demographic information revealed that the northern California and western Oregon wildfires were associated with more devastating outcomes because 1) a higher ratio of communities were intermixed with flammable fuels, 2) fire ignitions of an electrical origin occurred in wind-prone corridors that were upstream from communities, and 3) communities in northern California and western Oregon were composed of a greater percentage of socially vulnerable people such as the elderly who were less capable of perceiving and evading intense rapidly evolving wildfires.
  • Keywords:
  • Source:
    Weather, Climate, and Society, 15(1), 75-93
  • DOI:
  • ISSN:
  • Format:
  • Publisher:
  • Document Type:
  • Rights Information:
  • Compliance:
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at repository.library.noaa.gov

Version 3.26.1