Old Advisory Events
The information herein is NOT intended for use as a weather forecast. The Air District DOES NOT forecast but solely compiles information from both the Phoenix and San Diego National Weather Offices to relay information concerning potential changes in ambient air concentrations that may impact the public.
| September 2 2016
|High wind levels have the potential to suspend particulate matter into the air. High levels of PM10 may pose an impact to public health. It is recommended that active children and adults, and people with respiratory disease, such as asthma, limit their outdoor activities.
Potential increases in PM10 concentrations may increase to moderate or unhealthy level.
|Imperial County Weather Synopsis
|SYNOPSIS FROM THE SAN DIEGO OFFICE
A trough of low pressure over the West will bring fair and cool weather with a deep marine layer through Labor Day. Gusty onshore winds in parts of the mountains and deserts are expected during afternoons and evenings. Higher pressure will return around the middle of next week for warmer weather and less extensive coastal cloudiness
The low pressure trough over the west will keep us in this deep marine layer pattern through at least Monday. Locally strong and gusty winds will develop each afternoon and continue through much of the night in parts of the mountains and deserts. These will occur most likely through the mountain passes, ridgetops, and desert slopes into portions of the deserts. Daytime temperatures across the region will remain below average through the holiday. On Tuesday the trough begins to lift out, and continues to do so Wednesday
SYNOPSIS FROM THE PHOENIX OFFICE
Monsoon moisture levels will begin a dramatic decrease today that will last through early next week as the region falls under drying and more stable westerly flow aloft. Only a slight chance of thunderstorms will linger over the eastern Arizona high terrain today and generally out of the way of the forecast area. Under mostly clear skies, temperatures will run slightly below normal with a larger diurnal curve. Monsoon moisture will return in abundance next Wednesday and Thursday, leading to an increase in thunderstorm activity and clouds.
|Weather Story Phoenix Station
||Weather Story San Diego Station
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