Man seems like an unusual increase in long duration tornadic systems this year so far. This is like the 3rd or 4th continually producing tornados for 24hrs or more. At least seems like it, too tired to check.
Mesoscale Discussion 0424
NWS Storm Prediction Center Norman OK
0113 AM CDT Sat Apr 01 2023
Areas affected...Middle Tennessee...northeastern Mississippi...and
northwestern Alabama
Concerning...Tornado Watch 101...
Valid 010613Z - 010745Z
The severe weather threat for Tornado Watch 101 continues.
SUMMARY...Severe storms -- capable of producing damaging winds and
tornadoes -- continue moving eastward across the Tennessee Valley
area.
DISCUSSION...Latest radar loop shows a band of storms moving across
Middle Tennessee and northeastern Mississippi at this time, with
several embedded severe/rotating storms. Along with risk for wind
gusts in the 60 to 70 MPH range, a few storms appear to be either
currently tornadic, or capable of producing a tornado in the near
term.
Two of these supercells -- one now moving into southern Prentiss
County in northeastern Mississippi and the other crossing central
Pontotoc County in northeastern Mississippi -- both appear to have
produced tornadoes within the past 15 to 30 minutes.
Given the degree of shear indicated by KGWX and KHTX WSR-88d VWPs,
and mixed-layer CAPE in the 1000 to 1500 J/kg range, the environment
downstream from the ongoing storms remains favorable to support a
continuation of risk through the remainder of WW 101, and
potentially farther east still -- which may require new/downstream
WW issuance into eastern Tennessee.