Stagnation: Light stagnation during calmer periods in the morning
Wind: Southwesterly winds of 5-15 mph initially, shifting to more westerly in the afternoon
Saturday
Stagnation: Morning and evening stagnation
Wind: Westerly winds of 5-15 mph
Sunday
Stagnation: Morning stagnation
Wind: Southwesterly winds of 10-15 mph
Monday
Stagnation: Morning stagnation
Wind: Southwesterly winds of 10-15 mph
Tuesday
Stagnation: Morning and evening stagnation
Wind: Mostly light winds
Discussion
Last night, gusty winds from distant thunderstorms resulted in dust in western Pinal County. PM10 (dust) levels were briefly elevated at multiple sites. This morning, PM10 is now mainly locally driven.
Looking ahead, PM10 will be locally driven in the mornings when conditions are more stagnant. But, we also can't rule out the possibility of wind-driven dust the next couple of evenings/nights.
