How to prepare for the weekend heat wave in Clackamas County

Oregon City and Clackamas County will experience the first heat wave of the summer over the holiday weekend.

The National Weather ServicesPortland office released an excessive heat warning weather message on Tuesday, July 2 that warned of “dangerously hot conditions with temperatures from 100 to 105 expected.”

The NWS warning is in effect from noon, Thursday, July 4 to 11 p.m. on Sunday, July 7.

The message also noted that because temperatures will drop only to the 60s and low 70s overnight, recovery from high temperatures won’t arrive until Sunday evening. NWS provided a 25-35% chance that temperatures would exceed 110 degrees on Saturday and a 10-15% chance that temperatures would exceed 110 degrees on Friday or Sunday.

The excessive heat warning extends as far west as the Oregon Coast and as far east as Hood River.

Clackamas County cooling centers

Clackamas County recommends that those without reliable air-conditioning or access to a cooling source seek out a Clackamas County cooling center.

Oregon City has several local cooling centers for residents who don't have air conditioning or need to escape the extreme heat. Father's Heart Street Ministry on 12th Street and Oregon City Public Library on John Adams Street will both be open as cooling centers. Nearby, the Gladstone West Linn and Milwaukie Public Libraries will also be open later as cooling centers on Friday and Saturday.

Prevent heat exhaustion and heat stroke

Warm weather, especially in places like the Pacific Northwest where residents are less used to extreme heat, can lead to serious negative health impacts. It is important to drink plenty of fluids, avoid high energy outdoor activities or work if possible and pay attention to signs of heat exhaustion such as cramps, headache, fatigue and excess sweating.

Both Clackamas County and the National Weather Service said in their messages that heat stroke is extremely dangerous. If you experience any of the following symptoms – red, hot and dry skin, no sweating, strong and rapid pulse and a body temperature that exceeds 103 degrees – after prolonged exposure to high temperatures, call 911.

It is important to check in on the most vulnerable members of the community during heat waves, including the elderly and the very young.

For four-legged companions, make sure to give them plenty of cool water and check concrete or asphalt to make sure it isn’t too hot for them to walk. The easiest way to check this is to put the back of your hand on the ground for at least five seconds.