Heat Warning Symbol - Rising Temperature Alert Icon #3323415 (License: Personal Use)

This graphic depicts a high-visibility warning symbol: a red equilateral triangle with a yellow inner border, containing a white-outlined thermometer filled with red liquid and a bold red upward-pointing arrow. The design follows international hazard signage conventions, using color contrast and universally recognized icons to convey urgency and rising thermal risk.

Commonly used in weather alerts, public health advisories, transportation warnings, and climate dashboards to signal heatwaves, extreme temperature forecasts, or HVAC system overload conditions; matches user intent for understanding or deploying heat-risk visual communication.