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Forecast Discussion: Thursday, an upper-level trough of low pressure over northern California will enhance atmospheric mixing in the Sacramento region, and cool temperatures will limit ozone formation. As a result, ozone levels will be Good. Friday and Saturday, light onshore flow will limit pollutant dispersion in the Sacramento region, and sunny skies with warmer temperatures will aid ozone formation. These conditions will result in low-Moderate ozone levels on both days. |