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.

September 13 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
Low pressure over California and Nevada today will weaken and move east later this week with high pressure from the southwest spreading into California next Sunday and Monday. High temperatures will be coolest today...warm to near average for Thursday through Saturday...and warm to a little above average for Sunday and Monday. A deep marine layer with coastal low clouds and patchy fog extending onto the coastal mountain slopes...will become gradually shallower for Wednesday through next weekend. Onshore flow will bring strong and gusty southwest to west winds to the mountains and deserts into tonight

Low pressure over California and Nevada today will weaken and move east through Friday with weak upper level low pressure remaining into the southwest states

The stronger onshore flow will bring strong and gusty southwest to west winds in the mountains and deserts into this evening... gradually diminishing late tonight.

Today should be the coolest day with high temperates around 5 degrees below average near the coast...to 10 to locally 15 degrees below average for inland areas. Warming will begin Wednesday with high temperatures for Thursday through Saturday near average. The marine layer will become shallower with night and morning coastal low clouds and patchy fog not extending as far into the valleys.

High pressure aloft from the southwest will move into California Sunday and Monday. High temperatures will warm to around 5 degrees above average with the marine layer becoming a little shallower.

SYNOPSIS FROM THE PHOENIX OFFICE
A weather disturbance will move north of the area today resulting in breezy conditions and scattered afternoon and evening thunderstorms over higher elevations of central and eastern Arizona. A much drier airmass will envelop the region through the remainder of the week yielding widespread dry weather and temperatures remaining near to slightly cooler than normal
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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