View In:   ArcGIS Online Map Viewer

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: 7083bdf3f34a482abfd711e378f59812

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

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:

XMin: 5932408.522695139
YMin: 2125707.4812296033
XMax: 6007869.199885413
YMax: 2262066.2708605975
Spatial Reference: 2872  (2872)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [238, 252, 214, 255]
Outline:
Style: esriSLSSolid
Color: [110, 110, 110, 255]
Width: 0
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: true
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: false
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:

Fields:

• SRA ( type: esriFieldTypeString, alias: SRA, editable: true, nullable: true, length: 3, defaultValue: null, modelName: SRA )
• InCorp ( type: esriFieldTypeString, alias: InCorp, editable: true, nullable: true, length: 1, defaultValue: null, modelName: InCorp )
• Haz_Code ( type: esriFieldTypeSmallInteger, alias: Haz_Code, editable: true, nullable: true, defaultValue: null, modelName: Haz_Code )
• Haz_Class ( type: esriFieldTypeString, alias: Haz_Class, editable: true, nullable: true, length: 25, defaultValue: null, modelName: Haz_Class )
• GlobalID ( type: esriFieldTypeGlobalID, alias: GlobalID, editable: false, nullable: false, length: 38, defaultValue: null, modelName: GlobalID )
• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• Shape__Area ( type: esriFieldTypeDouble, alias: SHAPE.STArea(), editable: false, nullable: true, defaultValue: null, modelName: SHAPE.STArea(), required: true )
• Shape__Length ( type: esriFieldTypeDouble, alias: SHAPE.STLength(), editable: false, nullable: true, defaultValue: null, modelName: SHAPE.STLength(), required: true )

Templates:

• Name: FIRE_HAZARD_SEVERITY_ZONE_LRA
  Description:
  Prototype:
  Haz_Class: null
  SRA: null
  InCorp: null
  Haz_Code: null
  
  Drawing Tool: esriFeatureEditToolPolygon

Capabilities: Query,Sync,ChangeTracking

Sync Can Return Changes: true

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: true

Supports Query With Historic Moment: true

Supports Coordinates Quantization: true

Child Resources:   Field Groups   Contingent Values

Supported Operations:   Query   Query Analytic   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata   Update Metadata