PA Ozone/PM2.5 Forecast
December 23, 2014
Date: Tuesday, December 23, 2014
High particle concentrations continue across the forecast area this afternoon, at or near the Code Orange threshold. Rain overnight will reduce concentrations and cleaner air will infiltrate the region as southerly winds increase late Tuesday. As a result, particle concentrations will fall
but will remain well within the Moderate range.
Heavy rain is expected on Wednesday and will continue into Thursday morning. Particle concentrations will continue to decrease but the daily average will remain just within the Moderate range. A cold front on Thursday will bring cooler, drier and cleaner air with good air quality expected on Christmas Day.
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