Heat.gov - National Integrated Heat Health Information System (NIHHIS)

This portal provides authoritative and usable resources on the subject of heat health. At a glance, users can see real-time estimates of the number of people in the U.S. that are under extreme heat advisories, watches, and warnings issued by the National Weather Service. The site also features climate projections showing where dangerous heat conditions may occur in the future.

A simple tabbed interface gives users a way to view

• Current heat conditions
• 7-day heat risk
• Current temperature
• Climate outlooks
• Extreme heat days in 2050
• Days above 90°F in 2050