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.

August 30 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
The NWS Phoenix office has issued a Flood Advisory until 5:45 p.m. for eastern Riverside County due to heavy rain associated with thunderstorms.

EXCESSIVE HEAT WARNING EFFECTIVE THROUGH SATURDAY
The NWS in San Diego has issued an Excessive Heat Warning now in effect until 10 pm on Saturday. Temperatures will range from 110 to 114. Temperatures will lower a few degrees next week, but will remain above average.

SYNOPSIS FROM THE SAN DIEGO OFFICE
Hot weather will continue through the weekend and into next week with nearly stationary high pressure over the Southwest. Low clouds and fog are possible along the coast at times. Monsoon flow will bring a small chance of thunderstorms mainly over the mountains each day.

SYNOPSIS FROM THE PHOENIX OFFICE
Above normal temperatures will continue this week as strong high pressure remains firmly entrenched over the interior West. Thunderstorm chances will remain limited across lower desert communities through the rest of the week with activity focused mainly over mountain areas. However, areas of strong gusty Thunderstorm outflows are possible each afternoon and evening over the south-central Arizona deserts. The potential for cooler temperatures and increasing moisture improves across the region by the weekend.
Weather Story Phoenix Station Weather Story San Diego Station
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