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What is an Excessive Heat Warning?

The National Weather Service has issued an excessive heat warning for all of Iowa until 9 p.m. Wednesday.
Credit: WNEP

IOWA, USA — The weekend was hot, but this week is only going to be hotter: The National Weather Service has issued an excessive heat warning for all of Iowa until 9 p.m. Wednesday. It's possible there will be an extension, too. 

The Local 5 Weather Team anticipates air temperatures in central Iowa will hit the mid 90s on Monday, and the low 100s on Tuesday, Wednesday, and Thursday.

In addition, high humidity means heat index readings could soar to near 110-115° in many areas for several days in a row. 

What is an excessive heat warning? 

According to the National Weather Service office in Des Moines, an excessive heat warning is issued when heat index values are expected to reach or exceed 110°F and not fall below 75°F for the duration of the warning. 

People living in areas affected by excessive heat warnings should do the following to stay cool:

  • Refrain from outdoor activities of any nature during the warmest time of the day
  • Drink plenty of water and take frequent breaks if you must be outside
  • Stay indoors in an air-conditioned building as much as possible
  • Check on elderly family members if they are living alone

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