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Susquehanna Valley Ozone/PM2.5 Forecast

Small map of Pennsylvania showing counties involved in the sv partnership.
Forecasted AQI for Ozone Air Quality Index Scale Forecasted AQI for PM2.5
August 28, 2014

 

Date: Thursday, August 28, 2014
Action Day?:  No
Temperature:  lower 80s Thursday
Discussion:
High pressure building in from southern Ontario on Thursday will bring a little cooler, but much drier air into Pennsylvania. With plenty of sunshine, temperatures will recover into the lower 80s. Ozone and fine particulate concentrations will improve into the good range as there will be plenty of mixing. Mostly clear and cool Thursday night with lows in the lower to middle 50s in the cooler spots.

Extended:
The spell of low humidity and comfortable temperatures will be short lived as surface winds quickly shift into the southwest over the Labor Day weekend. Friday should be another decent day with plenty of sunshine along with highs topping out near 80 degrees. While fine particulate and ozone may be on the increase Friday, averages should remain in the upper good range. Southwest winds and more humid air on Saturday may bring more moderate air quality into the region. There is a small chance for an afternoon or evening thunderstorm in spots with the mercury rising well into the 80s. Sunday into Labor Day will see periods of clouds and sunshine with the chance for more pop up thunderstorm activity. Warm and humid through the period with temperatures averaging several degrees above normal. Overall air quality may be in the moderate zone for fine particulate and upper good to low moderate ozone concentrations depending on how much convection does develop.---McAuliffe

 

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