As expected, the National Weather Service in Topeka has issued a heat advisory for the Lawrence area on Tuesday.

The advisory runs from noon to 9 p.m. Tuesday, while an identical advisory issued for Monday remains in effect. A heat advisory is issued when humidity and temperatures are expected to make it feel like 105 degrees or greater outside.

The NWS predicts a maximum heat index between 105 and 110 degrees on Monday and Tuesday. The highest heat values can be expected between 3 and 7 p.m.

Kris Sanders, a meteorologist for the NWS, said this would be the first time this year for Lawrence to reach triple-digit temperatures. The last time Lawrence reached 100 degrees was Sept. 8, 2013, with a high of 103.

He said having the first 100-plus day of the year in late July isn’t quite out of the norm.

“As far as unusual, off the top of my head, it’s probably not that unusual,” he said. “Triple digits — that doesn’t happen real, real often. We’re not Arizona.”

Neighboring counties Jefferson and Shawnee are also included in the advisory.

Temperatures are expected to cool off Wednesday and Thursday, with highs of 89 and 86 degrees, respectively.

The NWS recommends the following tips to stay healthy and safe in extreme heat:

• Reduce, eliminate or reschedule strenuous activities until the coolest time of the day. Children, seniors and anyone with health problems should stay in the coolest available place, not necessarily indoors.

• Wear lightweight, light-colored clothing to reflect heat and sunlight.

• Drink plenty of water, nonalcoholic and decaffeinated fluids. Your body needs water to keep cool. Drink plenty of fluids even if you don’t feel thirsty. People who have epilepsy or heart, kidney or liver disease, are on fluid restrictive diets or have a problem with fluid retention should consult a physician before increasing their consumption of fluids. Do not drink alcoholic beverages and limit caffeinated beverages.

• During excessive heat periods, spend more time in air-conditioned places. Air conditioning in homes and other buildings markedly reduces danger from the heat. If you cannot afford an air conditioner, go to a library, store or other location with air conditioning for part of the day.

• Don’t get too much sun. Sunburn reduces your body’s ability to dissipate heat.

• Never leave children, disabled adults or pets in parked vehicles. Make sure your child’s safety seat and safety belt buckles aren’t too hot before securing your child in a safety restraint system, especially when your car has been parked in the heat. Never leave your child unattended in a vehicle, even with the windows down.