AIR POLLUTION
CONTROL DISTRICT

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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.

August 9 2017
Be Advised
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
Seasonably hot summer weather will continue through the weekend. A West Coast trough will keep the monsoon at bay through Wednesday, with weak monsoonal flow returning Thursday through Sunday. There will be a slight chance for thunderstorms over the mountains Saturday afternoon and evening. Night and morning low clouds west of the mountains will retreat back to coast each day.
SYNOPSIS FROM THE PHOENIX OFFICE
The recent stretch of hot, dry weather will gradually come to an end by this weekend as moisture surges north through Arizona and southeast California. Thunderstorm chances will first begin to increase over mountainous areas, then eventually descend into valley locations into the weekend. A return to somewhat drier conditions with less expansive storm coverage is likely next week.
Weather Story Phoenix Station Weather Story San Diego Station
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