Severe T-Storm Watch May Need to Be Extended in Time for Southeastern Parts of the Area

Here is the latest Mesoscale Discussion from the SPC:

SUMMARY… Ongoing severe storms may pose a risk for isolated damaging wind gusts and severe hail after the 8 pm watch expiration of the severe thunderstorm watch. A local extension may be needed.

DISCUSSION… A cluster of severe storms across east-central Alabama in the vicinity of Montgomery has shown occasional organization and severe characteristics over the last hour. These storms are ongoing in a partially modified unstable airmass with surface temperatures in the upper 70s and dewpoints in the upper 60s. SPC mesoanalysis indicates between 2000-2500 J/kg of MLCAPE with 30-40 kts of effective shear. The loss of diurnal heating should result in only marginal boundary-layer cooling suggesting that storms may retain intensity beyond 8 pm. Given the favorable parameter space and occasional updraft rotation noted, isolated damaging wind gusts and severe hail will remain possible. A local extension of the severe thunderstorm watch may be needed to account for the threat past 8 pm.

Category: Alabama's Weather, ALL POSTS, Severe Weather