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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.

January 18 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
Seasonably cool with increasing clouds today. A series of storm systems will then move through the region tonight through early Tuesday. Rain and mountain snow will be heaviest and westerly winds will be strongest Thursday morning, Friday afternoon and Sunday night into Monday, along with a slight chance of thunderstorms Thursday and Friday. Dry weather is expected to return on Tuesday.

Radar indicates showers still north and west of Point Conception, but will likely move into Southern California this evening, increasing in coverage and intensity overnight as a storm system moves into the region. Periods of heavy rain and snow will affect some areas and there is enough instability for a slight chance of thunderstorms. The snow level will drop to about 5000 feet. Strong winds will be felt in most but not all areas. The mountains and adjacent deserts will be most impacted by the strong winds. This system will move through fairly quickly and showers will decrease Thursday afternoon and evening.

Weak high pressure will take over very briefly today allowing for slightly warmer temperatures. Beginning Thursday, a series of strong Pacific storm system will traverse the region. Extensive rain and high elevation snow are likely Thursday and again Friday through Saturday afternoon. A brief break is likely Saturday night and Sunday before another storm system affects the region on Monday and Tuesday. Temperatures will turn much cooler starting Friday with highs up to 10 degrees below normal
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