Inversions will continue this week with decreasing air quality, especially along the Wasatch Front. Slight improvement is ...

Not the strongest of inversion conditions so some cold air makes it into the atmosphere and there’s a possibility possibility ...

High pressure remains in place with valley inversions setting up. Valley fog and cooler air will remain in the lower ...

One look at the California temperature map and it might seem like something is wrong. As strange as it looks, it's actually ...

Quiet weather will persist through early next week. Mornings will stay cold, and inversion conditions could affect air ...

Quiet weather will persist through early next week. Mornings will stay cold, and inversion conditions could affect air ...

Sunny and mild for the coast and higher elevations Wednesday. Some westside valleys will continue to deal with clouds and fog ...

Dense fog will linger through the late morning and early afternoon Wednesday in the metro & valley. It will be significantly ...

KOIN 6 Chief Meteorologist Josh Cozart explains why this week's temperature inversion is reducing Portland's air quality.

This fog is forming because a strong inversion is in place, trapping cold air and moisture near the ground. Valley locations ...

The bottom line? A big ridge of high pressure has set up shop across the western U.S. leading to inversion haze, bad air ...

A ridge of high pressure will be centered over the region through the weekend, continuing a pattern of quiet, stable and ...