Yuma Forecast
AQI Scale
Air Quality ISSUED ON: Fri. Nov 24, 2017
This report is updated Monday through Friday and is valid for areas within and bordering Yuma, Arizona
Today | Friday 11/24/2017
32
Ozone
MessageHealth Statement:No health impacts are expected.
Tomorrow | Saturday 11/25/2017
31
Ozone
MessageHealth Statement:No health impacts are expected.
Extended | Sunday 11/26/2017
32
Ozone
MessageHealth Statement:No health impacts are expected.
Extended | Monday 11/27/2017
87
PM10
MessageHealth Statement:Unusually sensitive people should consider reducing prolonged outdoor exertion.
Notice:Blowing dust possible
Extended | Tuesday 11/28/2017
64
PM10
MessageHealth Statement:Unusually sensitive people should consider reducing prolonged outdoor exertion.
Notice:Blowing dust possible

Air Pollutant Breakdown
Pollutant Yesterday
11/23/2017
Friday
11/24/2017
Saturday
11/25/2017
Sunday
11/26/2017
Monday
11/27/2017
Tuesday
11/28/2017
O3 31 32 31 32 31 31
PM10 20 28 29 27 87 64
O3 = Ozone, PM10 = Particles 10 microns and smaller

Synopsis & Discussion
Forecaster: -M. Pace
Yesterday, Yuma reached a high of 91 degrees which broke the old record for the day of 87 degrees set back in 1950. This was also just one day shy of the record latest day to reach 90 degrees, which stands on November 25th, recorded in 1950. The average last 90-degree day is October 30th.

High pressure will continue to dominate the weather pattern through the weekend which will mean calm winds keeping PM-10 in the good range and well above average temperatures.

The pattern begins to change as a trough of low-pressure and associated cold front moves into California and then through Arizona Monday into Tuesday. This will bring with it cooler temperatures and stronger winds but sadly no chance of rain.

As the trough/cold front sweep through the region, expect gusty winds out of the WNW at around 25-30mph Monday afternoon. Behind the cold front, winds will switch and be out of the north around 15-20mph late Monday into Tuesday morning. These elevated winds will mean PM-10 will likely rise into the low moderates, especially on Monday.

As the storm system moves east, winds will decrease Tuesday afternoon.

Ozone will stay in the good range through the forecast period.

Useful Links
- Subcribe to the Forecast
- Yesterday's Monitor Data
- Year-to-Date Reports
- Read current issue of "Cracking the AQ Code"


Main Office
1110 W.Washington Street
Phoenix, AZ 85007
P: 602.771.2300
azdeq.gov