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.

October 27 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
SYNOPSIS FROM THE SAN DIEGO OFFICE
Fair and warm weather is expected today with high clouds. A Pacific low pressure system will bring showers and possible thunderstorms Friday. Continued moisture could result in a few mountain showers Saturday. Another trough will arrive Sunday and will bring cooler weather and scattered showers. A cool but dry holiday on Monday before the next trough arriving Tuesday with more showers.High clouds have thickened overhead and any coastal low clouds trying to form underneath them will be patchy at most this morning. It will be fairly warm today despite the thickening high clouds. We have three shortwave troughs that will move through Southern California in the coming week. The first one will arrive tonight and Friday. It has a pretty impressive moisture plume that will hit central California with good rains, but the edge of the moisture dramatically drops off just south and east of LA. Favorable orographic flow could wring out over an inch of rain in the San Gabriel and San Bernardino Mountains, but far lesser amounts are expected in the lowlands, especially as you head south into San Diego County.

SYNOPSIS FROM THE PHOENIX OFFICE
Strong high pressure over the region will lead near record temperatures today. A weather system moving through California on Friday will bring a chance of showers to southeast California along with slightly cooler temperatures. High temperatures this weekend will remain well above normal, but a gradual cool down will occur through the middle of next week. Near to slightly above normal temperatures are likely for much of next week with the mostly dry weather continuing.
Weather Story Phoenix Station Weather Story San Diego Station
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