Here is the specific area impacted by the polygon of the severe thunderstorm warning:
Strong indications of potential damaging wind gusts over Bibb County right now, will be approaching Montevallo and Calera. Eventually it will move to near Columbiana, spreading across the warning area down to near Jemison. Folks in the warning area should be inside away from windows.
This storm will pass near the Shelby County Airport, where there is an ASOS observing stations, so we will see if the winds are reaching the ground there. This will give a good indication of whether severe warnings should still be issued.
Here is the big picture:
More storms have formed back to the northeast over northern Shelby and southern Jefferson Counties into Northeast Jefferson County. They are not severe. Just rumbles of thunder and brief heavy rain.
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR…
NORTHEASTERN BIBB COUNTY IN ALABAMA…
NORTHERN CHILTON COUNTY IN ALABAMA…
SOUTHERN SHELBY COUNTY IN ALABAMA…
* UNTIL 730 AM CDT
* AT 648 AM CDT…THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70
MPH. THIS STORM WAS LOCATED NEAR WEST BLOCTON…OR 11 MILES NORTH
OF CENTREVILLE…AND MOVING EAST AT 45 MPH.
* LOCATIONS IMPACTED INCLUDE…
MONTEVALLO…ALABASTER…CALERA…JEMISON…COLUMBIANA…
WILSONVILLE…ASHBY AND BRIERFIELD IRONWORKS PARK.
THIS INCLUDES…
INTERSTATE 65 EXIT NUMBERS 219 THROUGH 238…
