The viewer, created as part of the Tree Mortality Task Force, includes various layers related to the California tree mortality problem, including ADS data (depicting areas of dead trees), High Hazard Zones, tree removal projects, and more.

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Public Resources Code 4201-4204 directs the California Department of Forestry and Fire Protection (CAL FIRE) to map fire hazard within State Responsibility Areas (SRA) based on fuel loading, slope, fire weather, and other relevant factors present, including areas where winds have been identified by the department as a major cause of wildfire ...

2018年1月19日 · The Tree Mortality HHZ Map is an off-the-shelf map. Tier 1 HHZs are zones near communities, roads, and utility lines, and are a direct threat to public safety. Tier 2 fire-threat areas outline areas where there is a higher risk (including likelihood and potential impacts on people and property) from utility related wildfires.

TMTF - Tier 1 HHZ CPUC Fire-Threat Tier 2 - Elevated Tier 3 - Extreme CPUC Approved Tier 2 and Tier 3 (January 19, 2018) ... Reax Map Threat Class 3 (Northern California) Reax Map Threat Class 4 (Northern California) FRAP Fire Threat Map Extreme (Southern California) FRAP Fire Threat Map Very High (Southern California) ...

A revised HHZ Map was issued by the U.S. Forest Service-CAL FIRE JointTree MortalityTask Force in March 2018. All data and information portrayed on the HFTD Map are

HFTD Zone 1 consists of Tier 1 High-Hazard Zones (HHZs) from the United States Forest Service (USFS) and California Department of Forestry and Fire Protection (CAL FIRE) joint map of Tree Mortality HHZs. Tier 1 HHZs are in direct proximity to communities, roads, and utility lines, and are a direct threat to public safety.

Accessing Fire Hazard Severity Zone Maps and Data: From June to September 2008 CAL FIRE is posting Recommended maps for Very High Fire Hazard Severity Zones in Local Responsibility Areas. For each county, until Recommended Maps are posted, Draft Maps used to develop recommendations for cities and unincorporated LRA in the county remain available.

2017年6月12日 · Tier One High Hazard Zones for Tree Mortality. Tier 1 High Hazard Zones are where tree mortality directly coincides with critical infrastructure. They pose a threat to life and property. Hosted on CAL FIRE Portal.

Tier Two high hazard zones are defined by watersheds (HUC 12, average 24,000 acres) that have significant tree mortality as well as significant community and natural resource assets.