Heat Advisory For Much of Arkansas Thursday

Weather Headlines

LITTLE ROCK, Ark. – The National Weather Service in Little Rock issued a heat advisory for much of Arkansas through Thursday Evening.

Temperatures Thursday will reach the low to mid 90s, but very high humidity will make it feel more like the mid 100s. Heat index values may exceed 105°F Thursday afternoon and possibly exceed 110°F in a few locations. Heat index values over 105°F are considered to be potentially dangerous without proper precautions.

Heat and Health

High heat indices as a result of heat and humidity can have serious impacts to one’s health.

Our bodies get hot, and we begin to sweat as a result of our bodies trying to cool down. Evaporation is a cooling process, so if the sweat cannot evaporate, the body won’t regulate its temperature. When humid air is present, it’s harder for the moisture on one’s body to evaporate because the air is already saturated. Therefore, the human body will feel warmer in humid conditions because less evaporative cooling is taking place.

As the body temperature rises, you could experience a heat related illness. Knowing the symptoms assosciated with each illness will help you determine which actions to take to alleviate the situation.

Heat index value effects to the body.
Credit: National Weather Service

The Centers for Disease Control (CDC) provides warning signs and symptoms as well as recommended first aid steps for heat related illnesses, below.

Heat Exhaustion

  • Symptoms: feeling faint or dizzy, excessive sweating, skin that may be cool, pale or clammy, nausea or vomiting, a rapid or weak pulse and/or muscle cramps.
  • First aid actions: get to a cooler, air conditioned place. Drink water if conscious. Take a cool shower or use a cool compress.

Heat Stroke

  • Symptoms: throbbing headache, no sweating, a body temperature above 103 degrees, red, hot or dry skin, nausea or vomiting, a rapid or strong pulse, and/or loss of consciousness.
  • First aid actions: call 9-1-1 immediately and cool down as best as you can until help arrives.
Credit: National Weather Service, Little Rock

Tips to help you beat the heat:

  • Avoid strenuous activities, especially during the midday hours.
  • Wear light colored and loose fitting clothing.
  • Stay out of the sun if you can. If not, take breaks in the shade.
  • Drink plenty of water to stay hydrated.
  • Never leave children and pets in cars.
  • Cool down in air conditioned locations.
  • Check in on elderly friends, neighbors and relatives.

A weak front will bring a little relief for the end of the week, but heat index values will still be well into the 90s.

To view the extended forecast, click HERE.

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