BEND, Ore. – The National Weather Service has issued an air stagnation advisory for areas east of the Cascades, including Bend, in effect until 4 a.m. on Friday. The advisory is a result of stagnant air conditions caused by a temperature inversion, which has led to poor air quality across the region.

The temperature inversion, a phenomenon where a layer of warmer air traps cooler air near the ground, can cause pollutants to become trapped in the atmosphere. This leads to a buildup of unhealthy air that can pose health risks, particularly for those with respiratory issues, children, and the elderly.

Local authorities are urging residents to limit outdoor burning to prevent further deterioration of air quality. This includes minimizing the use of residential wood-burning devices, such as fireplaces and wood stoves, which contribute to pollution in the air. State air quality agencies are recommending that people avoid unnecessary outdoor activity during this period to reduce exposure to harmful pollutants.

The advisory will remain in effect until early Friday morning, with conditions expected to improve once the inversion lifts. In the meantime, residents are encouraged to monitor local air quality reports and take precautions to safeguard their health.