Mesoscale Discussion 0257
NWS Storm Prediction Center Norman OK
0657 PM CDT Sun Mar 23 2025
Areas affected...Mid-South
Concerning...Tornado Watch 60...
Valid 232357Z - 240130Z
The severe weather threat for Tornado Watch 60 continues.
SUMMARY...A concentrated corridor of supercells is expected across
portions of the Mid-South this evening.
DISCUSSION...LLJ is shifting southeast early this evening along the
southern fringe of a trough that is shifting towards the lower Ohio
Valley. Large-scale synoptic front is expected to advance across
western KY/TN/eastern AR, but pre-frontal confluence appears to be
aiding scattered-numerous robust updrafts, including supercells,
along a corridor from southeast AR-northern MS-northwest AL. Most of
the longer-lived updrafts are producing hail and this should
continue into the mid-evening hours. Additionally, forecast
soundings suggest some tornado risk where dew points have risen into
the lower 60s, as SBCAPE in this environment is fairly substantial
within a strongly sheared environment. With time this corridor is
expected to gradually sag southeast.