National Weather Service and air district issue advisories

 Blowing dust is going to make driving and breathing difficult in the southern end of the San Joaquin Valley on Friday.

The National Weather Service has issued a blowing dust advisory from 5 a.m. Friday to 11 p. m. and is predicting east winds of 15 to 25 miles per hour with gusts as high as 40 miles per hour in some areas.

At the same time, the San Joaquin Valley Air Pollution Control District issued a health advisory that went into effect Thursday and continues through Friday for unhealthy levels of dust and other particulate matter kicked up by the winds.

“Winds may produce areas of localized blowing dust, which can result in unhealthy concentrations of particulate matter 10 microns and smaller (PM10),” the district warned. “Exposure to particulate pollution can cause serious health problems, aggravate lung disease, trigger asthma attacks and bronchitis, and increase risk of respiratory infections. 

“Where conditions warrant, people with heart or lung disease should follow their doctors’ advice for dealing with episodes of particulate exposure,” the statement issued Thursday continued. “Additionally, older adults and children should avoid prolonged exposure or heavy exertion, depending on their local conditions.”

While the strongest winds will be felt in the extreme south and east winds of the valley, the National Weather Service said, winds will be strong enough to make blowing dust a problem in other areas, and could lower visibility on area roads and highways.

The winds are going to blow in some very warm fall temperatures for the weekend with temperatures climbing to near 90 on Saturday, Sunday and Monday.