ROCKFORD, Ill. (WTVO) — As an Excessive Heat Watch was issued for parts of Northern Illinois, it’s wise to know the difference between heat exhaustion and heat stroke, and how to prevent it.

An Excessive Heat Warning has been issued for Stephenson, Jo Daviess, Carroll, Whiteside, Ogle, Lee and DeKalb.

A Heat Advisory has been issued for Rock, Green, Walworth, Winnebago, Boone and McHenry.

According to, your body’s ability to cool itself is challenged during extremely hot and humid weather.

Symptoms of heat exhaustion:

  • Heavy sweating
  • Weakness
  • Cool, pale, clammy skin
  • Fast, weak pulse
  • Possible muscle cramps
  • Dizziness
  • Nausea of vomiting
  • Fainting

First Aid:

  • Move person to a cooler environment
  • Lay person down and loosen clothing
  • Apply cool, wet cloths to as much of the body as possible
  • Fan or move victim to air conditioned room
  • Offer sips of water
  • If person vomits more than once, seek immediate medical attention

Symptoms of heat stroke:

  • Altered mental state
  • One or more of the following symptoms: throbbing headache, confusion, nausea, dizziness, shallow breathing
  • Body temperature above 103°F
  • Hot, red, dry or moist skin
  • Rapid and strong pulse
  • Fainting, losing consciousness

First Aid:

  • Heat stroke is a severe medical emergency. Call 9-1-1 or get the victim to a hospital immediately. Delay can be fatal.
  • Move the victim to a cooler, preferably air-conditioned, environment.
  • Reduce body temperature with cool cloths or bath.
  • Use fan if heat index temperatures are below the high 90s. A fan can make you hotter at high temperature.
  • Do NOT give fluids.


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