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.

June 22 through June 25, 2018
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
IMPERIAL COUNTY WINDS

WINDS: A weather system passing to the north will bring breezy to conditions to Imperial County. Winds are forecasted to reach as high as 20 mph with gusts up to 30 mph in some areas on Saturday afternoon.

WEATHER SAN DIEGO OFFICE
WINDS: The desert areas of San Diego County (Borrego Springs) will become windy Friday afternoon through Saturday. West winds will increase Friday afternoon and reach 25 mph with gusts of 35 mph during the night. On Saturday, light winds will increase during the afternoon and into the night to 25 mph with gusts up to 40 mph.

High pressure aloft will bring hot weather to the deserts this afternoon through Friday, but onshore flow and a strong marine layer will continue the mild weather along the coast with extensive night and morning low clouds and only partial afternoon beach clearing. High pressure will weaken over the weekend and bring cooler weather
to inland areas. Fair weather will continue early next week with temperatures increasing slightly, but night and morning low clouds will continue near the coast.

WEATHER PHOENIX OFFICE
Strong high pressure will continue through Friday leading to some excessive heat and many lower desert communities exceeding the 110 degree threshold. A little moderation will be due this weekend as a passing trough in the northwestern states will translate into about a 5 degree drop in afternoon highs. As we move into the early to middle portion of next week, high temperatures will again climb with hottest deserts back near 110 by next Wednesday. There are no signs of rainfall through at least early next week as sunny days and clear nights will be the rule.
Weather Story Phoenix Station Weather Story San Diego Station
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