|Mesoscale Discussion 264|
< Previous MD Next MD >
Mesoscale Discussion 0264
NWS Storm Prediction Center Norman OK
0700 PM CDT Thu Mar 25 2021
Areas affected...central and northern AL...southern middle TN
Concerning...Tornado Watch 50...
Valid 260000Z - 260030Z
The severe weather threat for Tornado Watch 50 continues.
SUMMARY...A new tornado watch will likely be issued by 730-745pm CDT
and effectively replace the ongoing PDS tornado watch set to expire
at 800pm CDT.
DISCUSSION...Radar mosaic shows several clusters of storms across AL
and a band of storms near the TN/MS/AL border as of 7pm CDT.
Although a considerable amount of convection has led to rain-cooled
temperatures and a reduction in instability over north-central and
northern AL, a moist and adequately unstable airmass remains in
place given the presence of mid 60s dewpoints near the TN border to
upper 60s over south-central AL. Very strong low to mid-level flow
will conditionally support updraft rotation with established/mature
updrafts. It appears the overall severe risk has lessened compared
to earlier this afternoon, but isolated large hail, damaging gusts,
and a tornado threat will probably persist through much of the
evening. It is unclear whether more than a few storms will pose a
severe risk, but the environment will at least favor some potential
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 33108829 35288792 35248574 33828544 32818589 32018776
Top/All Mesoscale Discussions/Forecast Products/Home