Dust Risk-Based Forecast | Pinal County

Friday

Stagnation: Light stagnation

Wind: Light becoming west 5-10 mph

Saturday

Stagnation: Light stagnation

Wind: Light becoming west to west-southwest 5-15 mph

Sunday

Stagnation: Light stagnation

Wind: Light becoming west to west-northwest 4-9 mph

Monday

Stagnation: Light stagnation

Wind: Light winds

Tuesday

Stagnation: Light stagnation

Wind: Light becoming west to west-northwest 4-9 mph

Forecast Discussion:

The abnormally hot temperatures continue as high pressure controls the local weather. Unfortunately looking at the long range forecast, high pressure will maintain control into next week, so no rain in site. The initial high pressure will be centered west and south of the area and as the weekend progresses will strengthen over northern California. The early morning conditions around Hidden Valley may provide some brief spikes of PM10, however the daily averages are forecast to be below the health standard through Sunday (moderate dust risks). Early next week however, the early morning wind conditions around Hidden Valley will be more favorable for lengthy PM10 spikes, thus have forecasted exceedances of the PM10 health standard (high dust risks).

- S.DiBiase
Pinal County Air Quality Meteorologist