Wednesday, August 29, 2007
Action Day?: No
Temperature: Mid 80s
Fine Particulates (PM 2.5) – Code YELLOW
Ozone (O3) – Code GREEN
Short-Term Discussion: Areas of fog early Wednesday morning with temperatures expected to bottom out near 60 degrees. Becoming mostly sunny and more humid with light southeasterly winds and afternoon temperatures expected to reach the mid 80s. Fine-particulate concentrations should push into the code YELLOW (moderate) range while ozone will remain in the upper code GREEN (good) range.
Extended: We expect several days of warm and humid weather prior to the arrival of a weak cool front late Thursday night. The forecast models do not depict this as an overly strong front at the moment with only spotty showers expected Thursday night and Friday. Ozone and fine-particulate concentrations should remain in the moderate range prior to this frontal passage. A ridge of high pressure is then forecast to pass over the Northeast lowering temperatures and humidity levels for the start of the Labor Day weekend.
