9:04 p.m.

The heat advisory that was in effect for Douglas County has expired.

12:45 p.m.

The National Weather Service has issued a heat advisory for Douglas and surrounding counties from 7 a.m. to 9 p.m. Wednesday.

The combination of high temperatures in the 90s and dewpoint temperatures in the mid-70s will cause heat index readings to be between 105-110 degrees.

Counties included in the advisory are:

• Douglas
• Jefferson
• Shawnee
• Ottawa
• Republic
• Washington
• Marshall
• Nemaha
• Brown
• Cloud
• Clay
• Riley
• Pottawatomie
• Jackson
• Dickinson
• Geary
• Morris
• Wabaunsee
• Lyon
• Osage
• Franklin
• Coffey
• Anderson

This includes the cities of Marysville, Hiawatha, Concordia, Clay Center, Manhattan, Abilene, Junction City, Topeka, Lawrence, Emporia and Ottawa.

Prolonged exposure to heat index readings above 105 degrees can cause:

• Rapid dehydration
• Exhaustion
• Heat stroke

If you plan to be outside, the NWS recommends avoiding long periods of sun exposure and strenuous physical activity. Use sunscreen, drink plenty of non-alcoholic fluids to avoid dehydration and wear light-weight, light-colored and loose fitting clothing.

It is likely the advisory could be extended into Thursday as portions of northeast Kansas are expected to see a heat index above 105 degrees.