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.

April 26 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
Strong northwest flow aloft will bring strong winds to the mountains and deserts this afternoon through tonight. Fair and warm weather is forecast through the weekend with some offshore flow and local northerly winds. High pressure will continue to bring fair and warm weather next week. Brisk northwest flow aloft will increase winds in the mountains and deserts this afternoon through tonight. Top isolated gusts will exceed 60 mph, but widespread gusts over 40 mph are expected. That could stir up some dust in areas of the desert. Wind Advisory from 1 PM this afternoon to 3 AM PDT Thursday for Apple and Lucerne Valleys-Coachella Valley-Riverside County Mountains-San Bernardino County Mountains-San Diego County Deserts-San Diego County Mountains-San Gorgonio Pass Near Banning.
SYNOPSIS FROM THE PHOENIX OFFICE
A series of mainly dry Pacific weather disturbances will move across the western states through early next week. These systems will keep afternoon temperatures near or slightly below normal, along breezy afternoons and evenings. One stronger disturbance on Friday will likely bring windy conditions and has the potential to produce a slight chance of afternoon showers over the eastern Arizona mountains. Winds will again be breezy today, but gusts should mostly remain below 25 mph. Similar conditions are expected for Thursday as dry northwest flow continues. Another windy day is likely on Friday with a high likelihood of some areas being under Wind Advisory. The strong winds and lowering humidities on Friday will likely bring dangerous fire weather conditions once again.
Weather Story Phoenix Station Weather Story San Diego Station
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