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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.

May 5 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
A cold low pressure system will develop over Southern California during the weekend...then weaken early next week and move east during the middle of next week. Cooling will spread inland today with coolest high temperatures on Sunday...15 to 25 degrees below average for inland areas. Periods of showers are expected from Saturday through early next week along with a slight chance of thunderstorms for Saturday night through Monday. Strongest and gusty west winds for the mountains and deserts are expected for Saturday afternoon through late evening. Slow warming for early next week...with greater warming for the middle to latter part of next week with high temperatures returning to near average.
One more day of unseasonably hot temperatures before a Pacific low pressure system moves into the area resulting in significantly cooler temperatures over the weekend and early next week. Breezy conditions with localized blowing dust will be likely Saturday, then a few showers and thunderstorms will roll through the area Monday and Tuesday. Dry weather will return with moderating temperatures during the middle of next week. In addition to impacts directly from the winds, critical fire weather conditions will also likely exist through central and eastern Arizona. Probably the most fascinating part of this system will be the marked cooling by Sunday with forecast highs only in the middle/upper 70s - quite an abrupt 30F change from yesterday and today.
Weather Story Phoenix Station Weather Story San Diego Station
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