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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.

November 16 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
Much cooler and cloudier weather is expected today as a low pressure trough moves quickly through California. Strong westerly winds will develop this afternoon mainly in mountains and parts of the desert. These winds will shift and become strong from the northeast overnight for areas of the Inland Empire and inland Orange County. Fair and warmer weather will follow Friday and Saturday under a weak ridge of high pressure. A weaker but wetter low pressure trough will move through the region late Sunday and Monday with a chance of showers. Fair and warmer weather will follow Tuesday and Wednesday

High clouds will continue to stream across our sky today in advance of a low pressure trough moving into California.
Clearing will take place this evening from the north to south and from coast to the foothills. This trough has the muscle to produce strong westerly winds especially in our mountains and deserts this afternoon and evening. Late tonight these winds will quickly turn northerly and become strong in the northern Inland Empire into inland Orange County, and also the northern Coachella Valley. So the wind advisory has been augmented to add the northerly wind event expected Thursday morning. Winds will decrease Thursday afternoon, but some pockets of brisk easterly winds will continue into Friday.

a Low pressure system will begin moving through the western states today into Thursday. This will result in breezy to windy conditions and much cooler temperatures, most noticeably on Thursday. In fact, highs on the low deserts Thursday will be around 70 degrees. The coolest morning so far this month will be on Friday. A warming trend is expected over the weekend. A weather system may bring unsettled conditions with chance of showers mainly across south central Arizona by the beginning of next week

Widespread area of mid and high clouds continues to stream northeastward ahead of a vort max approaching the Baja Peninsula and a broad trough across the Pacific Northwest. No rain is expected today across the area, however the clouds will temper the afternoon insolation and combined with thickness falls, will result in a few degrees of cooling. Nevertheless, temperatures remain well above average but that will change tomorrow. Previous discussion below describes the situation well. Current forecast is in good shape and only minor adjustments to the short- term temperatures were needed this morning
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