The redesigned and free AccuWeather app has more than a dozen new map layers, which includes an interactive radar map, a temperature map and even an air quality and pollution map.

The Northeast is set for more snow, while the Southwest can expect further rain following downpours over the Christmas period ...

The free AccuWeather app has more than a dozen map features that allow you to monitor your area from precipitation to air quality. You can also use an interactive radar map that can track lightning.

Forecast maps provided to Newsweek by AccuWeather illustrate the potential impacts of Tropical Storm Erin, which is expected by the National Hurricane Center (NHC) to become a hurricane on Friday.