For ArcGIS Users: Add CalHeatScore to ArcGIS Pro

Add the CalHeatScore feature layer directly to an ArcGIS Pro project using the service URL.

Add the layer

1. Open ArcGIS Pro and open a project with a map.

2. Go to the Map tab and click Add Data > Data From Path.

   

3. Paste the following URL into the Path box:

   https://services1.arcgis.com/PCHfdHz4GlDNAhBb/arcgis/rest/services/CalHeatScore_Live_Data_for_API_Use/FeatureServer/0
   

   

4. Click Add. The CalHeatScore layer appears in your Contents pane as a polygon layer with ZIP code boundaries.

Filter by ZIP code or score

Use a definition query to display only the ZIP codes you need:

1. Right-click the CalHeatScore layer in the Contents pane and select Properties.
2. Go to the Definition Query tab.

3. Click Add Clause and build your filter:

   To show...	Set the clause to...
   A single ZIP code	ZIP_CODE is equal to 95814
   A set of ZIP codes	ZIP_CODE is in 94602, 90001, 95758
   High/extreme risk today	CHS_Day_0 is greater than or equal to 3

4. Click Apply. The map updates to show only matching ZIP codes.

Symbolize by score

Color the ZIP code polygons by CalHeatScore level:

1. In the Contents pane, click the symbol under the CalHeatScore layer to open Symbology.
2. Set the primary symbology to Unique Values.
3. Set the field to CHS_Day_0 (or whichever forecast day you want to visualize).

4. Assign colors to each score value:

   Score	HEX Color Code
   0	#DEDEDE
   1	#FAE0C8
   2	#EA8753
   3	#C23A00
   4	#700006

5. Click Apply to update the map.

The CalHeatScore layer is read-only. You can query, symbolize, and analyze the data in ArcGIS Pro, but you cannot edit features.