Pinal County Forecast
Risk Scale
Air Quality Dust RiskISSUED ON: Wed. Sep 20, 2017
This report is updated Monday through Friday and is valid for Pinal County, Arizona
Thursday 9/21/2017

High
Winds:Light becoming west to southwest 7-17 mph, gusts 25-35 mph
Stagnation:Light stagnation
Friday 9/22/2017

Moderate
Winds:Light becoming southwest to west 5-15 mph, gusts 20-25 mph
Stagnation:Light stagnation
Saturday 9/23/2017

Moderate
Winds:Light becoming west to northwest 5-15 mph
Stagnation:Light stagnation
Sunday 9/24/2017

Moderate
Winds:Light becoming west to northwest 5-15 mph
Stagnation:Light stagnation
Monday 9/25/2017

Moderate
Winds:Light becoming west 5-10 mph
Stagnation:Light stagnation


Synopsis & Discussion
Forecaster: -S. DiBiase
Large-scale troughing is this week's weather feature as a couple of upper level impulses move down from the Pacific Northwest and influence our weather. There are moderate dust risks forecasted for today, Friday, this upcoming weekend and early next week. Thursday is a forecasted high risk day due to stronger winds expected and the likelihood of widespread blowing dust as the bulk of the upper level energy moves southward towards the state. The timing of the approach of this large upper level low pressure system is expected to be late Thursday/early Friday and so Friday's dust risk forecast may be increased into the high category. Check back on Thursday to see if any changes are made to the dust risk forecasts.
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Main Office
1110 W.Washington Street
Phoenix, AZ 85007
P: 602.771.2300
azdeq.gov