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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 10 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 brief introduction to the monsoon is expected this afternoon and this evening across the desert southwest. Latest 12z sounding from TWC sampled a record PWAT of 1.46 inches, while SPC mesoanalysis indicates that even higher PWATS are concentrated across southern Pima County associated with a well-defined vort max and 700 mb inverted trough across northern Sonora. Widespread canopy of high clouds from this low has overspread much of southern Arizona this morning. However, latest NAM simulated satellite imagery suggests that the clouds will dissipate across eastern Arizona this afternoon as the vort max lifts to the north and west. General consensus among the latest CAMs is that increasing instability and convection in these areas will propagate northwestward, possibly reaching eastern portions of the Phoenix area this evening.

High pressure will be displaced to the east over the next several days resulting in somewhat cooler weather than the past week. A temporary increase in moisture will support some showers and storms over higher terrain of central and southern Arizona this afternoon, with outflow boundaries and localized blowing dust possible into lower elevation communities. Temperatures near the seasonal average will continue through early next week before hotter conditions become re-established during the latter half of the week

Fair and seasonal weather will continue with coastal clouds each night and morning extending into the valleys and persisting at some beaches in the afternoons. Today some mid and high clouds will move up from Mexico, bringing a slight chance of showers, and even an isolated thunderstorm or two to the mountains. This weekend will be a little cooler with more extensive coastal low clouds and drizzle, as well as gusty winds in the mountains and deserts. Gradual warming is on tap next week, with less extensive cloudiness
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