Dust Risk-Based Forecast | Pinal County

Saturday

Stagnation: No stagnation

Wind: East becoming southeast 7-17 mph, gusts 25-30 mph

Sunday

Stagnation: No stagnation

Wind: East to southeast 7-17 mph, gusts 20-25 mph

Monday

Stagnation: No stagnation

Wind: Easterly winds 5-15 mph diminishing in afternoon

Tuesday

Stagnation: Light stagnation

Wind: Light becoming west 4-9 mph

Wednesday

Stagnation: Light stagnation

Wind: Light becoming west 5-10 mph

Forecast Discussion:

An upper level low pressure system off the southern California coast this weekend will help usher in atmospheric moisture and bring chances for showers and perhaps a thunderstorm or two. Have increased Saturday's and Sunday's PM10 forecasted values a bit and added a mention of blowing dust as there is a slight chance for some pop-up thunderstorms and associated localized outflows. Even though the forecasted PM10 levels are elevated a bit over the weekend, they are still in the good AQI category (i.e. low dust risk). The chances for showers remain for Monday, though in areas to the south and east. The longer range forecast has high pressure building into the area for the second half of next week.

- S.DiBiase
Pinal County Air Quality Meteorologist