Name: FIRE_HAZARD_SEVERITY_ZONE_LRA

Display Field: Haz_Class

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The California State Fire Marshal is required to identify areas in the state as Moderate, High, and Very High Fire Hazard Severity Zones based on consistent statewide criteria and based on the severity of fire hazard that is expected to prevail in those areas. Moderate, High, and Very High Fire Hazard Severity Zones are based on fuel loading, slope, fire weather, and other relevant factors including areas where winds have been identified by the Office of the State Fire Marshal as a major cause of wildfire spread.In 2007, CAL FIRE updated the FHSZs for the State Responsibility Area (SRA). Between 2008-2011 the department worked with local governments to make recommendations for the Very High Fire Hazard Severity Zones within Local Responsibility Area (LRA). The hazard maps are being updated to more accurately reflect the zones in California that are susceptible to wildfire. CAL FIRE used the best available science and data to develop, and field test a model that served as the basis of zone assignments. The model evaluated the probability of the area burning and potential fire behavior in the area. Many factors were included such as fire history, vegetation, flame length, blowing embers, proximity to wildland, terrain, and weather. CAL FIRE updated the Fire Hazard Severity Zones (FHSZ) for State Responsibility Areas (SRA) (maps effective April 1, 2024). Using these same processes and models, CAL FIRE updated the FHSZs for LRA, releasing the updated maps February 25, 2025. These updated maps were adopted locally, and ratified by the Marin County Board of Supervisors June 24, 2025.

Service Item Id: 78e39c1c64d240279f27896d66be2c14

Copyright Text: CAL FIRE recognizes the important contribution of various local government entities that contributed data, maps, and comments that were critical components of the FHSZ mapping process.

Default Visibility: false

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 5932408.522695139
YMin: 2125707.4812296033
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YMax: 2262066.2708605975
Spatial Reference: 2872  (2872)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Simple Renderer:
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Outline:
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Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
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Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• SRA ( type: esriFieldTypeString, alias: SRA, length: 3 )
• InCorp ( type: esriFieldTypeString, alias: InCorp, length: 1 )
• Haz_Code ( type: esriFieldTypeSmallInteger, alias: Haz_Code )
• Haz_Class ( type: esriFieldTypeString, alias: Haz_Class, length: 25 )
• SHAPE ( type: esriFieldTypeGeometry, alias: Shape )
• GlobalID ( type: esriFieldTypeGlobalID, alias: GlobalID, length: 38 )
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• SHAPE.STLength() ( type: esriFieldTypeDouble, alias: SHAPE.STLength() )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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