If you’re used to hearing the siren testing each month at 10 a.m., don’t listen today.

The Dallas County Department of Homeland Security/Emergency Management Agency has canceled the testing for today because of the potential threat for severe weather, said Rhonda H. Abbott, deputy director of the EMA.

The National Weather Service in Birmingham says severe storms are expected to develop along and ahead of a strong cold front this morning and afternoon near the Alabama-Mississippi state line and move eastward through the day.

Forecasters say there is some concern that a few breaks in the clouds may occur in the warm air over southern portions of Central Alabama, which would support the development of isolated supercells.

In Selma and Dallas County, the high is expected to reach 75 degrees with a breezy south wind between 10 and 20 mph and gusts as high as 30 mph. The chance of precipitation today is 80 percent.

Tonight, showers and possibly a thunderstorm may rumble through the area before 3 a.m. The low is expected to reach 52 degrees with the south wind switching to the west. The chance of precipitation is 100 percent.

Abbott said residents of the Valley Grande and Martin Middle School area do not have a working siren.

“The components have been sent for repair,” she said. “However they will not be back to the contractor for installation today.”

Abbott recommended the residents in those areas stay tuned to local media outlets for the latest watches and warnings.