Excessive heat wave begins across Middle Tennessee

(Photo: WKRN)

NASHVILLE, Tenn. (WKRN) – The first significant heat wave of the summer in Middle Tennessee arrived Wednesday and is expected to last into the weekend.

Several days of very hot and humid weather are expected as strong high pressure spreads across the region. High temperatures in the mid 90s will be common.

Heat index values will top out in the 100 to 104 degree range each afternoon.

RELATED: How the heat index works

Graphic: WKRN

A Heat Advisory is in effect for Western Kentucky from noon Wednesday to 7 p.m. Sunday. Nashville and the rest of Middle Tennessee are also expected to experience dangerous heat and humidity.

The National Weather Service’s threshold for a Heat Advisory is a heat index of 105 degrees or above, or an actual temperature of 103 degrees or above.

News 2 meteorologists forecast Wednesday’s heat index to be near 100 degrees, with possible heat index values at 105 degrees by Friday and Saturday.

The actual thermometer should reach the mid 90s Wednesday through Saturday.

A spokesman for the Tennessee Department of Environment and Conservation advised visitors to area parks to limit activities at peak temperatures during the day and try to plan activities early in the morning and late in the afternoon when temperatures are cooler.

Graphic: WKRN

Volunteers with Open Table Nashville will be in downtown Nashville, distributing water to the homeless.

In hot weather, it is a good idea to wear lightweight, loose-fitting, and light-colored clothing to reflect heat. Drink plenty of water. Avoid being outdoors and in the sun during the afternoon, if possible. Check on relatives and neighbors, especially the elderly.

And last but not least, do not leave a child or pet unattended in a vehicle. The temperatures inside a vehicle can reach deadly levels in only a few minutes.