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AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
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Air Quality Forecast
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Forecast Discussion: Current Conditions: As of 2 PM on Wednesday, partly cloudy skies prevail over the region as a line of showers, which moved through our area earlier this morning, continues to move off to our east. At the same time, a frontal system still remain draped just to our west. In fact, we are beginning to see a new line of showers develop over Ohio. The overall west to east upper level flow will likely steer some of those showers in our direction later today. Right now, southerly winds are driving temperatures into the upper 70s. Air quality levels, which were elevated yesterday, felt the impact of the line of showers earlier this morning and have dropped into the good category. This good air quality will linger into tomorrow as another round of showers move in over the region. *** Thursday's Forecast: So for Thursday, mostly cloudy skies will persist throughout the day as the frontal system, which was off to our west on Wednesday, remains in place across eastern Ohio and western PA. The front will remain the focal point for shower development. Therefore, the location of the front with respect to our area means we are likely to see some rain. Afternoon temperatures will continue to remain seasonably warm, with highs in the low 80s. The combination of the clouds and rain will keep ozone confined to the good category. The relatively low level of PM 2.5 levels on Wednesday are likely to carry over to Thursday thanks to strong vertical mixing within the atmosphere. *** Extended Outlook: Over the coming days, expect to see the chance of rain persist through the early portion of the period as a slow moving frontal system tracks from west to east across PA. At the same time, an area of high pressure will build in over the Northeastern US. This high will push the front off to our south again and will diminish the rain chances over our area as we head into the second half of the weekend. This high will eventually push east into the Atlantic just as a ridge of high pressure extend into the Ohio Valley from the Plains. Expect a brief bout of warmer weather toward the middle of the week as a new frontal system pushes into the Great Lakes. This front will then push into Northeastern US on Thursday, providing us a round of showers before driving cooler and drier air in for the weekend. Overall, air quality levels are likely to fluctuate during the period. The good conditions early in the period are likely to rebound back toward the moderate range over the weekend thanks to the combination of warmth and humidity over the area. Levels will then fall again once the cold front pushes through during the middle of next week. --Nolan

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