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 19 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
Hot and dry Wednesday through Friday with gusty northeast winds at times. Minor cooling Saturday, followed by more significant cooling Sunday and Monday with a slight chance of precipitation late Sunday and Monday. Mild and drier for Tuesday and Wednesday as a trough remains just off the West Coast.

Skies were clear this morning. Santa Ana winds have begun to develop. Gusts below the Cajon Pass and in the Santa Ana Mountains are generally in the 20 to 30 MPH range. Surface pressure gradients are quickly trending stronger offshore to the north, currently at around -4 mb SAN-DAG. Winds will continue to strengthen through the morning, with moderate northeast to east winds prevailing into Thursday. A Wind Advisory has been issuedfor the Inland Empire, Santa Ana Mountains, and the Orange County Inland Areas through 2 PM Thursday. Gusts of 35 to 45 are likely below the passes and canyons, with isolated gusts to 50 MPH possible in locations such as Fremont Canyon and Highland Springs. Offshore winds will weaken Thursday afternoon into Friday morning, diminishing by Friday afternoon.

SYNOPSIS FROM THE PHOENIX OFFICE
Dry weather with mostly clear skies will continue across the Desert Southwest the rest of the week and into the weekend. Temperatures will warm, climbing well above average Thursday and Friday. It will be breezy at times today into Friday. A turn towards more unsettled weather develops early next week as low pressure approaches from the west.
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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