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Susquehanna Valley Ozone/PM2.5 Forecast

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Forecasted AQI for Ozone Air Quality Index Scale Forecasted AQI for PM2.5
July 31, 2014

 

Date: Thursday, July 31, 2014
Action Day?:  No
Temperature:  80-84 Thursday
Discussion:
High pressure should produce a mostly dry day for us on Thursday. With light southwest winds and increasing humidity, fine particulate is expected to move into the moderate range. Ozone levels will also be on the rise, and concentrations of this pollutant may go moderate in some areas, especially those downwind of major highways by the afternoon. Afternoon temperatures will climb into the lower to middle 80s.

Extended:
Periods of sun and cloudiness on Friday. High humidity and light winds should keep PM in the moderate range. Afternoon and evening thunderstorms are also expected to develop as well. If these hold off longer than we expect, another day in the moderate range for ozone is possible. Afternoon temperatures mainly in the lower to middle 80s. Over the weekend, a stronger onshore flow develops. Clouds as a result of this may limit how high ozone and temperatures rise. Showers and a thunderstorm are also possible each afternoon. The combination of the southeasterly wind and heavier rainfall potentially falling from thunderstorms could keep air quality down in the good range both days of the weekend. A little less rain, more sunshine, but continued humid conditions early next week may lead to more moderate air quality overall Monday into Tuesday. Temperatures will average close to normal by the early part of next week.--McAuliffe

 

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