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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.

October 9 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
Wind Advisory in effect for southeastern Imperial County.
Affected areas include Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Chuckwalla Valley, including the cities of Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, and Midland.


TODAY: Sunny and very windy. Patchy blowing sand and blowing dust through the day. Not as warm. Highs 83 to 88. North wind 25 to 40 mph. Gusts up to 50 mph. TONIGHT…Clear, breezy and cooler. Lows 54 to 64. North wind 15 to 25 mph.

Wind Advisory for Coachella Valley area:
The National Weather Service in San Diego has issued a WIND ADVISORY in effect from midnight tonight to noon pdt Monday. Areas of northeast winds 20 to 30 mph with gusts to 45 mph. Winds strengthening late tonight and continuing into Monday morning then weakening Monday afternoon. Affected location is northern Coachella Valley and north and east of Interstate 10. Reduced in blow sand and dust at times.

Winds will strengthen and become more widespread this morning then weaken some this afternoon and early evening then become weaker and more localized for tonight into Tuesday. Strongest and most widespread winds this morning are expected across northern and eastern portions of the Coachella Valley in the Inland Empire below the Cajon Pass and across inland Orange County and near the coastal foothills of the Santa Ana Mountains. Surface high pressure over the Great Basin will bring offshore flow for inland areas into Tuesday strongest today with strong gusty northeast winds near coastal foothills and below passes and canyons. Warming through Tuesday west of the mountains with the offshore flow…then a cooling trend spreading inland for Wednesday through Friday with a return of onshore flow. Another round of offshore flow and warming is possible for next weekend.

Breezy conditions and much cooler temperatures will affect the region as a cold front sweeps across the area today. The windiest weather will occur in far southeast California through this afternoon. The cold front has already progressed through much of southeast California and southwest Arizona with post-frontal wind gusts of 35-45 mph in some locations. The Wind Advisory for southeast California is out through early afternoon until winds begin to subside somewhat. South-central Arizona will not see widespread gusty winds, but wind gusts of 25-30 mph will be possible across the higher terrain north and east of Phoenix through around noon. Temperatures behind the cold front will drop a good 5-10 degrees with lower desert highs this afternoon in the middle to upper 80s. Weak high pressure will return to the region by the middle of the week allowing high temperatures to climb several degrees above seasonal normals. Dry westerly flow will also result in continued sunny days and clear nights.
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