The first heat wave of the summer is expected to hit in the lead up to Father’s Day weekend — a time when outdoor activities are usually prevalent in celebration of dads in Southwest Louisiana.

Joe Rua, lead forecaster with the National Weather Service’s Lake Charles office, said an upper-level ridge is expected in the area today that will allow hot air temperatures to combine with high humidity, bringing the threat for excessive heat.

A heat advisory will be in effect 11 a.m.-8 p.m. today with a dangerous heat index value up to 112 degrees.

Rua said a heat index value up to 112 degrees is also expected Friday and Sunday and a value up to 114 is predicted Saturday.

Potential hazards during this excessive heat threat is heat exhaustion, heat stroke and dehydration.

During excessive heat, Rua said to watch for heat cramps, which can lead to exhaustion, then stroke. Signs of heat exhaustion include dizziness, thirst, heavy sweating, nausea and weakness.

Heat stroke can cause death or permanent disability if emergency treatment is not given, Rua said.

Residents are advised to avoid strenuous activity and prolonged time outside, take frequent breaks in the shade or air conditioning, and drink plenty of water. Do not leave children or pets in vehicles and check on family members and neighbors, particularly the elderly.