Friday, August 31, 2007
Action Day?: No
Temperature: Low 80s
Fine Particulates (PM 2.5) – Code YELLOW
Ozone (O3) – Code GREEN
Short-Term Discussion: Hazy with a stray shower possible Friday morning. Temperatures will only fall into the mid 60s overnight. Clouds will slowly begin to clear and humidity levels will gradually decrease as a cool front works its way across the region. Afternoon temperatures should reach the low 80s with an outside chance of a stray shower or thunderstorm during the day. Fine-particulate concentrations should decrease on Friday but still remain in the lower code YELLOW (moderate) range while clouds and northerly winds should restrict ozone concentrations to the code GREEN (good) range.
Extended: The models continue to predict a nice start to the Labor Day weekend. Temperatures should fall back into more seasonable ranges (low 80s) with lower humidity for Saturday and Sunday. A ridge of high pressure will eventually slide eastward causing winds to turn out of a more southerly direction on Monday and Tuesday. This will cause temperatures and humidity levels to rise. Air-quality levels should be in the good range to start this weekend then gradually work their way back into the moderate range early next week.
