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Lehigh Valley Ozone/PM2.5 Forecast

Small map of Pennsylvania showing counties involved in the lv partnership.
Forecasted AQI for Ozone Air Quality Index Scale Forecasted AQI for PM2.5
October 1, 2014

 

Date: Wednesday, October 1, 2014
Action Day?:  No
Temperature:  70-74 Wednesday
Discussion:
High pressure will slowly build into the area Wednesday, but the day will start with plenty of cloudiness and perhaps a shower. Once again, winds will be quite light, and this will permit little change to the air quality, which will remain at moderate levels. Afternoon temperatures in the lower to middle 70s with sunshine returning in the afternoon. Patchy cloudiness Wednesday with areas of fog forming. PM2.5 will continue to be in the moderate range.

Extended:
We will remain on the mild side into the day Friday, with increasingly higher humidity and moderate levels of PM. High pressure will provide for sunshine for the most part on Thursday. Increasing winds from the south and southwest on Friday could bring the mercury into the middle 70s. Showers and a thunderstorm are then possible very late Friday into Friday night as a strong cold front approaches from the west. The weather pattern will then take a cooler and more progressive path over the weekend into early next week. With systems moving through with increasing frequency and increasing winds at the surface, mostly good air quality is expected. Highs over the weekend will average mainly in the middle 60s, just slightly below early October averages.---McAuliffe

 

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