The Lehigh Valley/Berks Area Air Quality Forecast for:
Tuesday, June 24, 2008:
Ozone (O3) – Code GREEN
Fine Particulates (PM 2.5) – Code GREEN
Regional Maximum PM 2.5 Concentrations:
Friday, June 20, 2008:
Ozone (O3) – Code YELLOW (54 AQI or 61 ppb)
PM 2.5 – YELLOW (55 AQI or 17.2 µg/m3)
Saturday, June 21, 2008:
Ozone (O3) – Code YELLOW (80 AQI or 69 ppb)
PM 2.5 – YELLOW (57 AQI or 18.4 µg/m3)
Sunday, June 22, 2008:
Ozone (O3) – Code YELLOW (71 AQI or 66 ppb)
PM 2.5 – YELLOW (69 AQI or 24.8 µg/m3)
Short-Term Discussion: A rather poorly-defined cool front is working its way across the state this afternoon. This system has touched off a number of isolated thunderstorms over the last couple of days, though none in the forecast area. There is a slight chance we may still get one this afternoon or this evening but most of the activity appears to be moving off well to our north and east. Partial sun and humid conditions are keeping air-quality readings in the low moderate range at the moment.
Partly cloudy overnight with a chance of an isolated shower or even a rumble of thunder; low temperatures will fall to near the 60 degree mark. Becoming mostly sunny and breezy on Tuesday with afternoon temperatures rising into the upper 70s to near 80 degrees. There may be a shower late in the day but most areas will remain dry. Northwesterly flow on Tuesday should bring in relatively clean air and hold ozone and fine-particulate concentrations to the code GREEN (good) range.
Extended: Other than an outside chance of a shower on Tuesday we should remain relatively dry over the next couple of days. Temperatures should remain near seasonal averages for this time of year with humidity levels remaining on the comfortable side. We will begin to see the chance of showers enter the picture by Friday and last through the better part of this coming weekend. Mostly sunny skies should allow ozone levels to remain in the good to moderate range while drier conditions should keep fine-particulate levels down. The situation will reverse as increasing clouds and higher humidity levels arrive later in the week.
Tags: air quality forecast, AQI
