Ozone levels are forecast to be highest between the hours of 11:00am - 6:00pm.
Currently, the atmosphere overtop the desert southwest is in a transition between exiting systems continuing to move off the east, and the arrival of new systems moving in from the west. Lightest winds are expected today and tomorrow in the valley, with southwest winds of 5-10 mph building later in the afternoon.
By the weekend, wind will increase again, improving ventilation and lowering high temperatures for a few days. Early next week, stagnant conditions will envelop the region, likely...