Understanding the heat index: What it is and how to calculate it

Name: Understanding the heat index: What it is and how to calculate it
Uploaded: 2026-05-19T18:49:41Z
Duration: 45 s
Description: Meteorologist Ari Sarsolari explains the heat index, a measure of how hot the air feels due to temperature and humidity. He demonstrates how to use the National Weather Service's chart to easily figure out the heat index by matching air temperature with relative humidity.

America's Weather Center · FWX · May 19, 2026 · 45s

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Meteorologist Ari Sarsolari explains the heat index, a measure of how hot the air feels due to temperature and humidity. He demonstrates how to use the National Weather Service's chart to easily figure out the heat index by matching air temperature with relative humidity.