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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.

May 19 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
High pressure aloft near the West Coast and weak offshore flow will bring warming through Saturday both inland and towards the coast. Above average high temperatures will continue for inland areas through early next week with gradual cooling the latter half of next week. A return of a shallow marine layer and weak onshore flow will bring slow cooling near the coast on Sunday...spreading slowly inland next week. Inland high temperatures will continue to warm for Sunday through early next week. This will push high temperatures to 5 to 10 degrees above average...around 105 in the lower deserts and in the lower to mid 90s in the upper deserts. Slow cooling is expected for the latter half of next week.
Broad area of low pressure will begin to exit the region today, keeping below normal temperatures in place across the lower deserts. A gradual warming trend is expected Saturday through early next week with lower desert temperatures climbing back into the triple digits. Weak low pressure will bring increasing clouds to the area by next Tuesday but little in the way of rain chances or cooler temperatures. For the weekend and into early next week, as the large upper low pushes off well to the east of Arizona, an upper level high pressure ridge will build along the Pac northwest and northern California coast allowing heights to climb each day with the lower deserts seeing 500mb heights above 582dm by Sunday and then over 585dm by Monday. Sunny days each day will allow for optimal mixing and warming and as such we will see highs climb to around normal
Saturday and then into the triple digits by Sunday.
Weather Story Phoenix Station Weather Story San Diego Station
Image for Phoenix Station Weather Story Image for San Diego Station Weather Story

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