Alert Details
* WHAT...For the Heat Advisory, overnight temperatures in the mid to upper 70s provide little relief from daytime heat. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 106 possible. * WHERE...Portions of northern, western and central Iowa. * WHEN...For the Heat Advisory, until noon CDT today. For the Extreme Heat Warning, from noon today to 9 PM CDT this evening. For the Extreme Heat Watch, from this evening through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.