With high temperatures 20 to 25 degrees above normal predicted for Labor Day weekend in the Mt. Shasta area, the National Weather Service has issued an Excessive Heat Warning from Friday morning, Sept. 1 through Sunday evening.

High pressure was expected to build into the region Thursday, according to NWS, and heat relief even at night will be limited over the weekend, with lows not expected to drop below 70 for much of the region.

Smoke from area wildfires will keep temperatures slightly cooler than they might otherwise be, but that will also pose a health problem for those seeking relief by opening windows or attempting any outdoor activities, according to NWS.

The Excessive Heat Watch includes much of Siskiyou County, including the city of Dunsmuir and surrounding areas.

High temperatures into the 100s are forecast with lows in the mid-60s to mid-70s.

Locations include: the Klamath and Salmon River valleys, including Happy Camp, Seiad Valley, and Somes Bar.

Possible impacts reported by NWS include: very high temperatures and limited relief overnight, which will increase chances for heat related illness, especially for sensitive groups and people without access to air conditioning. Heat stress is also possible for livestock and outdoors pets.

A map of the area can be seen at:  https://www.wrh.noaa.gov/mfr/HAZARD

NWS says an Excessive Heat Watch means that a prolonged period of hot temperatures is expected. Hot temperatures may create a dangerous situation in which heat illnesses are possible. Suggestions include: 

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Take extra precautions, if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water.