Fog is a visible aerosol consisting of tiny water droplets or ice crystals held in the air near the Earth 's surface. [1][2] Fog can be considered a type of low-lying cloud usually resembling stratus and is …

3 days ago · Residents awoke to a dense layer of fog blanketing the Treasure Valley on Thursday. Experts say a weather event known as an inversion is to blame for the misty morning — and it’s not …

1 day ago · Air Stagnation Continues Stable and dry conditions are expected through the week as high pressure dominates over the west. This will promote stagnant valley conditions that could lead to …

Fog is a cloud of small water droplets near ground level. It is formed by the condensation of water vapor on tiny particles that are always present in natural air; this occurs when the air becomes saturated …

4 days ago · Dense Fog Advisory issued for western Idaho's Treasure Valley as strengthening inversions trap cold air and create hazardous visibility conditions.

3 days ago · The Treasure Valley—including Boise, Mountain Home, Nyssa, Nampa, Caldwell, and Ontario—is under a Dense Fog Advisory until 11 AM this morning. Visibility could

2 days ago · Murky start to the morning, how do you know if you are heading out into mist or fog? Helen Willetts explains how to tell.

Oct 19, 2024 · Learn about fog in meteorology. Discover the definition, how and why fog forms, the different types, and how it differs from other phenomena.

Jan 6, 2026 · Fog is a meteorological phenomenon consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth’s surface. It is essentially a cloud that reduces horizontal …

Sep 30, 2025 · While ground fog is caused by cool, moist air rising from the ground, advection fog forms when warm, damp air flows over cold ground. You can distinguish between ground fog and advection …