Thursday, July 12, 2007


HGB Area

 

Maximum 1-hr Ozone (ppb)

Maximum 8-hr Ozone (ppb)

AQF F1

79 C96

-

Statistical Model

107.0

-

Human Forecast

85

-

Acutal (Observed)

79 C617

-

 

DISCUSSION

Model has given a high ozone forecast today based on the clearer skies and lighter wind provided by weather
forecast. However, the region is much more cloudy so the actual ozone should be less than what model
suggests. The high ozone spot should still be around Crosby.

Yesterday's high is more than model forecated due to a convergence zone just north of ship channel at noon
time. Plumes from ship channel was stalled in the area and the ozone high reached 82 ppb in C617 of Baytown.

7/12/2007 10:15:06 AM