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 9 2018|
|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|
Finally, a bit of moisture, and more may be on the way. Last night and into the morning hours 0.01" of precipitation was measured at Imperial County Airport. Today there remains up to a 50% chance of precipitation as the weather system passes through.
Gusty winds are expected across Imperial County as the weather system pushes through. A Wind Advisory has already been posted for the southwest portion of Imperial County. Southwest winds of 20 to 30 mph with gusts to 45 mph are forecasted for the afternoon for the southwestern part of Imperial County. Breezy conditions and patchy blowing dust is expected in many areas of the county.
SYNOPSIS FROM THE SAN DIEGO OFFICE
A Pacific storm will bring widespread showers and strong gusty winds into this evening with showers and winds decreasing late tonight. Mostly light rainfall has occurred overnight across the area with the leading edge of the cold front expected to reach the northern Orange County coast around 7 AM, the northern San Diego coast by 8 AM, the far southern San Diego County coast around 9 AM, and spread inland across the area this morning. For coastal and valley areas the strongest winds are expected ahead of the cold front. Rain showers are expected to end early Wednesday. Warmer and dry for Thursday through next weekend with locally gusty northeast winds near the coastal foothills at times.
SYNOPSIS FROM THE PHOENIX OFFICE
A strong low pressure system will move through the region today and Wednesday bringing scattered to numerous showers, possibly a thunderstorm, breezy conditions, and much cooler temperatures. Today begins a two-day period of unsettled conditions across the Southwest and California as a potent Pacific weather system moves on-shore. Evening radar mosaics have light to moderate rainfall streaming into San Diego and further up the I-5/I-15 corridors, lasting over the Peninsular/Coastal ranges with light, scattered showers across eastern Riverside and Imperial Counties this early AM. The heaviest rainfall should remain on the windward slopes of the mountains, with lighter intensity showers and thicker clouds spilling into the southeastern CA deserts. These light showers will continue to develop throughout the morning. Dry weather along with a warming trend will return Thursday and continue through the weekend as high pressure builds back over the area.
|Weather Story Phoenix Station||Weather Story San Diego Station|