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.

October 17 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
Today will be rather hot again, but a cooling trend will get started. Low pressure will bring onshore flow and cooler air into the region through Friday. The marine layer and coastal low clouds will redevelop each night and morning, along with some winds in the mountains and deserts. On Saturday the flow turns offshore as high pressure builds. That will bring Santa Ana conditions, clear skies and hot weather next week.
SYNOPSIS FROM THE PHOENIX OFFICE
High pressure will persist across the region through the middle of the week allowing for continued very warm and dry conditions. High temperatures for lower desert communities will generally reach into the middle and upper 90s. Somewhat breezy and cooler weather with more cloud cover will arrive during the end of the week. High pressure returns quickly by the end of the weekend, sending temperatures back to above normal readings.
Weather Story Phoenix Station Weather Story San Diego Station
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