* WHAT...Visibility near zero at times in dense fog. Some patchy freezing fog through daybreak is possible on bridges and elevated roadways.
* WHERE...Area-wide.
* WHEN...Until 11 AM EST this morning.
* IMPACTS...Significant visibility reductions to near zero at times will necessitate extra caution for commuters through late morning. Temperatures below freezing in many areas will increase the threat for icy patches on elevated roadways.