PA Ozone/PM2.5 Forecast
May 23, 2013
Date: Thursday, May 23, 2013
Temperature: Mid 70s
On Thursday, mostly cloudy skies will persist over the region as a cold front advances in from the west. This cold front will help to produce rain over our area as it collides with the warm and moist conditions already in place over the region. We will continue to be in the warm sector for much of the day so expect afternoon temperatures to rise into the mid 70s. Air quality levels will follow the trend from Wednesday and continue to fall well within the good range.
Over the coming days, expect to see cooler and drier conditions to build in early on thanks to the frontal passage on Thursday. The departing frontal system in combination with an area of high pressure building over the Midwest will help to steer our winds out of the north. The northerly winds will, in turn, force cooler and drier air into the region. Expect good air quality to prevail as a result. Temperatures will begin to warm early next week as the area of high pressure, which was off to our west, drives east of our area. Southwesterly flow will prevail and force temperatures back toward the 80 degree mark and dewpoint temperatures back into the 50s and 60s. The more humid air mass along with the warming temperatures are likely to force air quality levels back into the moderate range after Memorial Day. --Nolan
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