The Lehigh Valley/Berks Area Air Quality Forecast for:
Friday, February 1, 2008:
Fine Particulates (PM 2.5) – Code GREEN
Regional Maximum PM 2.5 Concentrations:
Wednesday, January 30, 2008:
PM 2.5 – YELLOW (54 AQI or 17.0 µg/m3)
Short-Term Discussion: Mainly sunny conditions with temperatures in the 30s at most locations. We expect some high clouds to creep in later this afternoon and evening ahead of a storm system that’s currently working its way into the Ohio Valley. Fine-particulate concentrations remain low at this time.
Increasing clouds overnight with temperatures expected to fall into the 20s. Precipitation should arrive around dawn starting out as snow or sleet before changing over to sleet and freezing rain. Temperatures are expected to increase from south to north changing any frozen precipitation to rain by mid-morning if not sooner. Rain, possibly heavy at times, expected through Friday evening with temperatures slowly rising to near 40 degrees. Rain may end as brief snow showers late Friday night. Easterly flow and possibly heavy rains should keep Friday’s fine-particulate concentrations in the code GREEN (good) range.
Extended: This weekend marks the annual weather ritual of Groundhog Day where serious meteorologists, such as myself, give way to that favorite weather prognosticator Punxsutawney Phil! I’ll leave the winter-weather predictions to this furry rodent and his inner circle; expect generally dry weather over the weekend, with above normal temperatures and rising fine-particulate concentrations.









