Dust Risk-Based Forecast | Maricopa County

Saturday

Stagnation: Morning stagnation

Wind: West-southwest winds of 10-15 mph; higher gusts in the afternoon

Sunday

Stagnation: Morning stagnation

Wind: West-southwest winds of 10-15 mph; higher gusts in the afternoon

Monday

Stagnation: Morning and evening stagnation

Wind: West-southwest winds of 5-15 mph; higher gusts in the afternoon

Tuesday

Stagnation: Morning and evening stagnation

Wind: West-southwest winds of 5-15 mph; higher gusts in the afternoon

Wednesday

Stagnation: Morning and evening stagnation

Wind: West-southwest winds of 5-15 mph; higher gusts in the afternoon

Forecast Discussion:

Today (Friday), high pressure will continue its reign over the Southwest. This will lead to light winds. However, a low pressure wave situated off the coast of southern California will slowly advance northward and begin to push against the high pressure. Then on Saturday, Arizona will be underneath a stronger southerly flow as the low pressure fights for space and shoves the high pressure eastward. This will ultimately usher in a new persistent pattern: southerly flow over Arizona that will last through at least Tuesday.

Weather-wise, afternoon breezes will continue to be present each day through at least Tuesday. And all else being equal, hot temperatures will foster atmospheric mixing in the daytime. Therefore, any local accumulation of dust in the mornings will be well dispersed the afternoons.

In all, the dust risk will remain Low through this period. Check back on Monday for the next outlook.

- M. Graves
ADEQ Meteorologist