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.

November 14 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
Slightly warmer for inland areas today under strengthening high pressure. Slightly cooler Tuesday...then greater cooling for Wednesday and Thursday as a low pressure trough moves inland across California. Strong and gusty winds will accompany this system, along with much cooler weather. There may even be a few brief showers Wednesday evening. Then, warmer and dry into the weekend

High pressure aloft will strengthen slightly today with slight inland warming...with slight cooling near the coast as weak onshore flow returns. Onshore flow will begin to strengthen on Tuesday in a advance of a trough of low pressure that will move inland through California on Wednesday. The non-GFS solutions are favored which are a little faster and less-amplified with the trough passage. Some patchy stratus may return near the San Diego County coast late tonight into Tuesday morning...with a greater return expected for Tuesday night into Wednesday morning... extending into the western valleys. Gusty southwest to west winds will strengthen to near advisory strength near mountain ridge tops and along desert mountain slopes into adjacent desert areas on Wednesday afternoon

SYNOPSIS FROM THE PHOENIX OFFICE
High pressure building over the region today and Tuesday will cause additional warming which will lead to much above normal temperatures by Tuesday...near records at some locations. A low pressure system will then move through the western states midweek. As a result, a dry cold front will move through the area Wednesday night and Thursday for breezy to windy conditions. Much cooler temperatures can be expected Thursday and Friday...dropping several degrees below normal. High pressure and warmer temperatures can be expected over the weekend
Weather Story Phoenix Station Weather Story San Diego Station
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