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 20 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
A strong high pressure system will cover the region and continue to produce record or near record afternoon heat across most of Arizona and southeast California through Wednesday. Folks are reminded that afternoon heat can kill if proper safety measures and planning aren't taken. If outdoors in the heat, remember to frequently drink water, limit strenuous activities to the morning hours if possible, avoid the mid-day sun, wear hats, and dress with loose-fitted and light colored clothing.

SYNOPSIS FROM THE PHOENIX OFFICE
Very strong high pressure sprawling across the southern United States will bring record heat to the region again today with most lower elevation locations experiencing highs in the 115 to 120 degree range. A combined increase in moisture and cloud cover will yield slightly cooler temperatures for the remainder of the week, where many communities will see readings falling towards a 108 to 113 degree range

SYNOPSIS FROM THE SAN DIEGO OFFICE
Morning trends are coming in much warmer already with some stations more than 10 degrees warmer than 24 hours ago. 12z sounding from Miramar is also much warmer especially in the mid and lower levels with 95 degrees measured at 1500 ft agl. Pwat is also down slightly showing the potential for rapid warm up which is occurring now. With this in mind we issued a quick update this morning to bump up max temps for today a couple of degrees. No clouds in the sky through early afternoon, then a weak eddy and southerly winds may impinge on the coast by late afternoon which could bring a slug of low coastal stratus clouds and fog to the immediate coast. No other changes were made to the forecast at this time. The CLIMATE section was also updated with new temps (below)!
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