This system was again run during the summer of 1999 for a 36km fine domain over the northeast quadrant of the US, while additional domains were added over the southern US, including a high-resolution 15km domain over the state of Texas.
Initial evaluations were conducted on forecasts made during the summer of 1998. Results show considerable agreement between ozone forecast by the modeling system and reported surface-level ozone measurements. Four 5-day cases have been analyzed and will be discussed at the conference.
In addition, we will present initial results from forecasts made during summer 1999, including forecasts relevant to the Philadelphia Urban-scale air pollution field experiment, and forecasts designed to assist "traditional" operational ozone forecast methods used in the state of Texas.
Finally, we will discuss prospects for the summer of 2000, address initial comparisons between our modeling system and NOAA's HYSPLIT system, and address the need for real-time ingest of atmospheric chemical initial and boundary conditions and updated emissions inventories.
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