MD 0316 CONCERNING TORNADO WATCH 64… FOR PORTIONS OF FAR EASTERN LOUISIANA INTO THE MISSISSIPPI PANHANDLE
Mesoscale Discussion 0316
NWS Storm Prediction Center Norman OK
0715 PM CDT Tue Mar 22 2022
Areas affected...portions of far eastern Louisiana into the
Mississippi Panhandle
Concerning...Tornado Watch 64...
Valid 230015Z - 230115Z
The severe weather threat for Tornado Watch 64 continues.
SUMMARY...An uptick in tornado potential may be developing in
association with two maturing supercells in far southeast Louisiana.
A strong tornado is possible.
DISCUSSION...Two discrete supercells continue to mature across the
St. Tammany and Jefferson Parish areas, with KLIX radar data showing
the development of more persistent mid-level mesocyclones
(especially for the northern storm). The 00Z LIX observed sounding
shows ample MLCAPE (1500 J/kg) driven by steep 850-600 mb lapse
rates and 70+ F surface dewpoints. More so, the observed hodograph
shows a long, curved shape, with over 400 m2/s2 effective SRH. Given
the discrete and organized nature of the large supercells, a locally
heightened risk of tornadoes exist. A significant tornado is
possible given the magnitude of low level shear, with the St,
Tammany Parish storm exhibiting a 40+ kt rotational velocity within
the past few minutes.
..Squitieri.. 03/23/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MOB...JAN...LIX...
LAT...LON 29629027 30209034 30559007 30888936 30998901 30788843
30518832 30018911 29728969 29629027
