AUTAUGA CO., AL (WSFA) - Mother Nature had emergency management crews on their toes across the area during the first weekend of 2015.
Some of the worst damage from thunderstorms and tornadoes came in Crenshaw County where an EF-2 tornado touched down.
It damaged or destroyed several buildings, but thankfully, no one was hurt.
An EF-0 tornado hit Marion County to our northwest. And in Tuscaloosa County, flooding washed away several roads.
Here in the River Region, both Autauga and Montgomery Counties were under tornado warning at some point. But some residents in those counties are concerned after not hearing emergency sirens when the warning was issued.
But there's a reason for that.
When a tornado warning is issued for an area, the warning itself fits into what's called a polygon.
Autauga and Elmore Counties are using a polygon based siren activation system that's is linked directly to the National Weather Service so sirens inside the polygon automatically fire when there's a warning. The polygon system only triggers sirens in potentially impacted areas. In Prattville, that raised some questions