While drift smoke was expected to blanket much of the Ukiah Valley on Wednesday and Thursday, by Friday a few rain showers could wash some of the haze away, the National Weather Service reported.
"Later this week, cool showery weather will overspread the region Friday through Sunday. Light beneficial rainfall will occur for many locations," the Eureka office of the NWS reported in its "Forecast Discussion" prepared for Aug. 30. "The highest rainfall amounts continue to be forecast for easternmost areas, particularly Trinity County, where storm total rainfall may approach one inch over the roughly 48-hour period from Thursday evening through Saturday evening."
As for possible thunderstorms, the NWS notes that "the best chance of thunder looks to be Friday and Saturday afternoons. Storm motion is expected to be quite slow for any Friday storms, which may lead to locally heavy rainfall beneath these isolated storms."
According to the forecast prepared by the NWS for inland Mendocino County, on Friday there was a "20-percent chance of showers after 11 a.m.," then a slightly higher chance of rain in the evening, described as "a 40-percent chance of showers, mainly before 11 p.m."
For Saturday, the NWS was predicting a "50-percent chance of showers, mainly after 11 a.m., (with) new precipitation amounts of less than a tenth of an inch possible."
Thursday was expected to be much like Wednesday, however, with "patchy smoke before 11 a.m. (and) widespread haze after 11 a.m."
The Mendocino Unit of the California Department of Forestry and Fire Protection reported Wednesday that "the smoke visible in Mendocino County is drift smoke from other fires in California. Please do not call 9-1-1 for the drift smoke; however, if you see flames or a defined column of smoke, that is the time to call 9-1-1. If you call, please be prepared to provide as many details as possible, including the best access road to the column or flames, and what is on fire. This information can assist responders."
As of 1 p.m. Aug. 30, the Mendocino County Air Quality Management District reported that "air monitors show particulate matter concentrations in the "Unhealthy for Sensitive Groups" to "Unhealthy" air quality level for most parts of the county," explaining that the "smoke impacts to Mendocino County are due to numerous wildfires in Northern California, with the South Fork Complex, Six Rivers Lightning Complex, and the Smith River Complex being the largest. Expect widespread haze and smoke impacts for most of Mendocino County in the next few days."
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