When red-hot isn't enough: New government heat risk tool sets magenta as most dangerous level.
The website for the Centers for Disease Control and Prevention displays on a computer screen in Glenside, Pa., Monday, April 22, 2024, a new heat risk system developed with the National Weather Service . They unveiled a new color-coded system to warn Americans about heat danger, and it will set magenta as the most dangerous level. Forget about red hot. A new color-coded heat warning system relies on magenta to alert Americans to the most dangerous conditions they may see this summer.
Magenta is the worst and deadliest of five heat threat categories, hitting everybody with what the agencies are calling "rare and/or long-duration extreme heat with little to no overnight relief." It's a step higher than red, considered a major risk, which hurts anyone without adequate cooling and hydration and has impacts reverberating through the health care system and some industries.
"Heat is a threat to our health," CDC Director Dr. Mandy Cohen said. She said last year more than 120,000 people were taken to the emergency room in the United States because of heat. Last year was one of the deadliest years in decades for heat, according to government records. There are numerous other meteorological indexes for heat, Graham said. Those include the heat index, which factors in humidity; wet bulb globe temperature, which is aimed at outdoor heat stress in the sun; and universal thermal climate index, which brings in radiation and other urban heat factors.
Climate Change Health Risks Heat Risk Heat Warning System Heat Waves Magenta National Weather Service
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