What is a "Significant Weather Alert"?

"Significant Weather Alert" - Bulletin issued to provide information about thunderstorms causing any of the following problems:

Unusually frequent/intense cloud-to-ground lightning
Winds 40 to 50 mph
Hail smaller than pennies
Heavy rain causing significant visibility restrictions...especially near major highways during high traffic times... or ponding of water on roadways.

Product Identifiers - ATLSPSFFC or WWUS82

This product is updated... as conditions warrant using another "Significant Weather Alert".