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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 13 2016
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
Latest streamline analysis shows a trough extending southward from NV through the lower Colorado River Valley. Showers have developed across northern AZ ahead of the trough. Areas of ACCAS were observed across the Phoenix area this morning, however latest hi-res guidance remains in good agreement that showers will remain well north of south-central AZ. Today also looks like it will be our coolest day for quite a while with high temperatures generally in the upper 90s to around 100 degrees in the lower deserts. Minor adjustments were made to the short-term temperatures. Otherwise, the forecast remains on track.

A dry low pressure system will continue to move across the southwest US through Tuesday keeping temperatures near normal. As high pressure starts to build over the Desert Southwest, a warming trend will commence on Wednesday with slightly above normal temperatures through Thursday. As high pressure continues to strengthen, significant warming will persist starting Friday into next week with potentially record high temperatures

A trough of low pressure near the west coast will maintain a deep marine layer and below average high temperatures into Thursday, with areas of night and morning coastal low clouds and patchy fog extending into the far inland valleys. Upper-level high pressure expanding to the north and west will create a strong warming trend and much shallower marine layer through Sunday, with high temperatures rising 5 to 15 degrees above average.
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