Inversion conditions are trapping cold air and pollutants in the Treasure Valley, and the National Weather Service says that’s not likely change anytime soon.
That’s what is causing the haze over the Valley Sunday. Warm air aloft from the West has trapped the cold air and is preventing the pollution from filtering out.
Cold air aloft or high winds would scrub out the dirty air, but that’s not in the forecast until next weekend.
The high temperature in Boise Sunday was hovering around 39. Temperatures this week are expected to be in the low- to mid-40s, with lows in the 20s through Tuesday. The lows will increase to the 30s by Wednesday.