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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.

June 22 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
...Excessive heat to continue through Monday in the lower deserts including the Coachella Valley...Continued hot in the deserts through Monday under high pressure aloft. It will not be quite as hot in the valleys the next couple of days as onshore flow increases, extending the marine influence farther inland. The marine layer will continue to moderate temperatures in the coastal region with clouds lingering into the afternoons at some of the beaches. The mountains will remain hot through the weekend. Excessively hot conditions will continue across the deserts through Monday as a high pres ridge remains entrenched across the SW region. The build up over many days means a continued threat to public safety even as the temperatures have fallen a few degrees below the hottest temperatures of a couple days ago. Although temperatures will not be quite as hot as what we saw a few days ago, a minor flare up in the temperatures will occur Sunday as the high becomes a tad stronger and temperatures may flirt with the 120 mark once again in the lower deserts. The excessive heat warnings have been extended for the lower deserts through Monday as temperatures will reach excessive levels once again. The ridge breaks down after Monday as the high slowly flattens out and by mid next week a Pacific trough slowly builds into the west coast...bringing an increase in cooling temps aloft to all of the region and finally inland temperatures should settle back a little closer to near normal levels.
High temperatures today will not be quite as hot as the past couple days but still very hot. Humidity will be higher as well. Anticipate little change in temperatures Friday. Temperatures increase over the weekend. Storm chances return to the higher terrain as well. Temperatures start to decline on Monday but still excessively hot in some areas. Modest additional cooling is anticipated Tuesday and Wednesday.
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