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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.

September 1 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
Residual monsoonal moisture could bring a few showers to the San Diego County mountains this afternoon. Otherwise...a trough of low pressure developing near the West Coast will bring cooling through the holiday weekend...stronger onshore flow with gusty southwest to west winds in the mountains and deserts each afternoon and evening...and deepening of the marine layer with night and morning coastal low clouds and patchy fog extending into the far inland valleys for the holiday weekend. Stronger onshore flow will bring gusty southwest to west winds to the mountains and deserts each afternoon and evening. Low pressure will weaken with warming to near seasonal levels for the middle part of next week

Stronger onshore flow will bring gusty southwest winds to the mountains and deserts each afternoon and evening. Lowest daytime humidities around 10 percent for Friday and Saturday afternoon and early evening combined with the gusty winds will bring conditions favorable for the rapid spread of fires to the deserts and desert slopes of the mountains

Deeper monsoon moisture has returned to the region supporting increasing chances for showers and thunderstorms today through early Friday. Chances extend as far west as beyond the Colorado River Valley today with brief but heavy rainfall, gusty winds and blowing dust the primary storm threats. A drier and stable airmass will transition into the region Friday from the west and linger through early next week
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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