Warren County is warning residents traffic on the day of the eclipse might be a nightmare.

County leaders are warning residents to be ready for heavy traffic, possible cell phone service disruptions and other potential impacts as large crowds come to the region to catch the eclipse.

They’re predicting possible gridlock on major roads, like the Northway, Route 9, Route 28, Route 149, and Route 8.

First Warning Traffic reporter Ally Hoy will have tips starting Thursday morning on how to stay safe on the roads.