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Forecast Discussion: Friday, May 24: Surface high pressure over the Great Lakes will generate gusty north-northwesterly winds in the Youngstown area. These winds will disperse pollutants and bring clean, cool air into the region, limiting both particle and ozone formation. Therefore, AQI levels will be Good. Saturday, May 25: Moderate and occasionally gusty north-northwesterly winds will continue to disperse pollutants in the Mahoning Valley, and cool temperatures will inhibit ozone formation, keeping AQI levels Good. Sunday, light to moderate northerly winds will disperse pollutants in the Mahoning Valley, and low humidity levels will limit particle formation. As a result, AQI levels will remain Good. Memorial Day, as surface high pressure moves over Ohio, lighter winds will reduce pollutant dispersion in the Mahoning Valley. However, low pollutant carryover from the weekend will keep AQI levels Good. Tuesday and Wednesday, as a low-pressure system approaches from the west, light to moderate southerly winds will bring pollutants and a warmer, more humid air mass into northeastern Ohio, aiding ozone and particle formation. As a result, AQI levels will be Moderate on both days. |
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