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Southwest PA Ozone/PM2.5 Forecast

Small map of Pennsylvania showing counties involved in the sw partnership.
Forecasted AQI for Ozone Air Quality Index Scale Forecasted AQI for PM2.5
April 16, 2014

 

Date: Wednesday, April 16, 2014
Action Day?:  No
Temperature:  Upper 40s
Discussion:
On Wednesday, mostly sunny skies will persist throughout the day as an area of high pressure builds in over the Northeastern US. This high will allow the winds to die and temperatures to rebound. Winds will be turning easterly during the day. These winds along with the sunshine are likely to keep temperatures in the upper 40s. The combination of the cool and dry conditions over the region should force PM 2.5 levels to remain within the good category.

Extended:
Over the coming days, expect to see temperatures remain closer to seasonable levels as a few more disturbances swing through the region. Here is how things are shaping up... On Thursday, expect warmer temperatures to return to the region as the high pressure system, which was over the Northeastern US on Wednesday, moves offshore. The warm conditions will linger into Friday as a new cool front begins to make its way through the Great Lakes / Ohio Valley region. This frontal system is likely to press through later in the day on Friday into Saturday. As it does, we could see a light shower. Otherwise, we will just see cooler and drier air build in for the weekend. Temperatures begin to rebound early next week ahead of a new disturbance over the Ohio Valley. This system could trigger another shower or two late Monday into Tuesday. Overall, air quality levels are expected to remain near the good / moderate threshold. --Nolan

 

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