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.

April 18 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
SYNOPSIS FROM THE SAN DIEGO OFFICE
A low pressure system over the eastern Pacific will bring stronger onshore flow today with cooling spreading inland....a deeper marine layer with patchy drizzle in some coastal and western valley areas early this morning...and periods of gusty west winds in the mountains and deserts. Warming will follow for Wednesday through Saturday as high pressure aloft strengthens near the West Coast with weak offshore flow for Friday and Saturday. A return of onshore flow will bring a cooling trend for Sunday through early next week.

SYNOPSIS FROM THE PHOENIX OFFICE
High pressure will remain in control of the weather this week, lifting the storm track to our north. A series of Pacific weather disturbances will travel through the ridge flow, bringing periods of breezy conditions and passing high clouds. One stronger Pacific disturbance will cut through the Four Corners for the late week. Windy conditions and fire weather concerns may result with temperatures holding in the 90s across the lower elevations. Dry and even warmer conditions are forecast for the weekend as ridging strengthens further.
Weather Story Phoenix Station Weather Story San Diego Station
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