NWS Twin Cities Home Page » Hot Weather Information
Ultraviolet Index | Heat Index Chart | Heat Wave Safety
Heat related deaths outpace fatalities in several severe weather categories. Based on a 10 year average from 1992-2001, excessive heat claimed 219 lives each year. By contrast, floods killed 88, tornadoes 57, lightning 52 and hurricanes 15.
The National Weather Service's Mean Heat Index 3 to 7 day forecast can make you aware of potentially dangerous heat conditions developing in the next week. Press Release on Mean Heat Index.
Latest Heat Indices around Minnesota (Heat Index abbreviated HI on far right under Remarks section)
Latest Heat Indices around Wisconsin
Yesterdays Observed Maximum Heat Index - Click to Enlarge
Excessive Heat Outlook (updated every day around 2 pm cdt)
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Brief Explanation of Excessive Heat Outlook
Latest Minnesota Heat Advisory or Warning Information from Weather.Gov
Latest Wisconsin Heat Advisory or Warning Information from Weather.Gov
Latest National Temperature and Dewpoint Analysis - Click to Enlarge
The National Weather Service makes daily forecasts of the Ultraviolet (UV) intensity for 52 metropolitan areas in a product called the UV Index. The UV Index is a next-day forecast of the amount of skin damaging UV radiation expected to reach the earth's surface at the time when the sun is highest in the sky (solar noon).
The UV index exposure categories were changed in May 2004 at the request of the Environmental Protection Agency to make the categories consistent with those established by the World Health Organization. More information on the updated UV Index exposure categories.
Graphic of Latest UVI Forecast - Click to enlarge | Latest UVI Forecast in Text Format
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National Weather Service Heat Wave Site and Heat Awareness Site
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NWS Heat Wave Brochure in PDF format
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Red Cross "Are You Ready for a Heat Wave" Brochure
