Douglas E. Welch

New California tool ranks extreme heat danger by neighborhood. Here's how it works | LAist

It’s going to be hot this summer. And a new tool can help you figure out the risk that the temperature can pose to your health.

The California Communities Extreme Heat Scoring System — which the state is calling CalHeatScore — can tell you the level of heat-related health risk you face and point you to cooling resources in your area.

This pilot program ranks risk from extreme heat into four categories, from mild to severe. A ranking of “severe,” for example, could correspond with a higher temperature inland, as opposed to at the beach.

http://welchwrite.com/blog/2025/07/22/new-california-tool-ranks-extreme-heat-danger-by-neighborhood-heres-how-it-works-via-laist-shared/

#california #heat #heatindex #weather #severe #danger #web #tool #shared

Jul 22, 2025 at 6:45pmWeb
Show threadAltbotJul 22, 2025

@douglaswelch The image displays a graph titled "Calculating Heat Rankings" with a subtitle "Example Zip Code." The graph plots "Apparent Temperature (F)" on the x-axis, ranging from 60 to 100 degrees Fahrenheit, and "Health Risk" on the y-axis, with percentages from Baseline to +100%. The graph shows two curves: one in blue and one in red, both rising as the apparent temperature increases. The blue curve starts at a lower health risk and rises more gradually, while the red curve starts higher and rises more steeply. The graph is divided into four color-coded zones labeled CHS 1 to 4, with CHS 1 in green, CHS 2 in light orange, CHS 3 in orange, and CHS 4 in dark red. The zones likely represent different heat risk levels. The background is white, and the graph is framed by an orange border. The bottom right corner features a logo with a green leaf and a human figure.

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