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.

May 5 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
High Fire Danger!
The combination of wind warm temps and dry desert and mountain bio-fuels have also promoted a Red Flag Warning for high FIRE danger

SYNOPSIS FROM THE PHOENIX OFFICE
A large Pacific low pressure system will move into the desert Southwest later today through the weekend. This system is forecast to bring windy weather today followed by much cooler conditions and a threat of showers and thunderstorms Friday and Saturday. The low pressure system will begin to move East Sunday followed by dry and much warmer weather next week.

Very interesting weather!
A massive Pacific low pressure system off the Central and Southern CA coast will partially move inland today.
Meteorological data suggest a moderately strong vertical motion field developing over Southeast CA and Southern Nevada. Low level winds will subsequently respond in a big way becoming South 25 to 40 mph with areas of attendant blowing dust.

SYNOPSIS FROM THE SAN DIEGO OFFICE
A low pressure system will arrive in Southern California today and move slowly through the region Friday through the weekend. It will bring cool and cloudy weather with showers and brisk winds this afternoon and evening. The greatest chance of showers will be tonight and Friday with a few thunderstorms possible. Fair and warmer weather will return next week as high pressure moves over the west coast.

A low pressure trough will move into Southern California today. Winds will develop in portions of the mountains and deserts this afternoon through tonight. Some gusts will top 50 mph. The chance of showers will gradually increase this afternoon and evening and become likely tonight through Friday. Latest models indicate enough instability for a slight chance of thunderstorms this evening through Friday as well but the greatest chance will migrate inland during the day Friday.
Weather Story Phoenix Station Weather Story San Diego Station
Image for Phoenix Station Weather Story Image for San Diego Station Weather Story

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