ZCZC SPCSWOMCD ALL
ACUS11 KWNS 042318 
SPC MCD 042318 
ILZ000-IAZ000-MOZ000-050045-

Mesoscale Discussion 0463
NWS Storm Prediction Center Norman OK
0618 PM CDT Tue Apr 04 2023

Areas affected...Mid-MS Valley

Concerning...Tornado Watch 115...

Valid 042318Z - 050045Z

The severe weather threat for Tornado Watch 115 continues.

SUMMARY...Tornado threat continues with storms along/south of the
warm front this evening.

DISCUSSION...Two main clusters of deep convection have evolved
across Tornado Watch 115 this evening. Over the last hour or so, new
thunderstorms are maturing within a very steep low-level lapse rates
plume, immediately ahead of the cold front across southwestern IA,
trailing across northwestern MO into extreme northeast KS.
Supercells will mature along this corridor and spread northeast atop
cooler boundary layer north of the warm front. Tornado threat
continues with these storms south of the warm front, while severe
hail can be expected with most storms.

A secondary cluster of supercells is gradually expanding within
notable warm advection zone from northeast MO into west-central IL.
Very large hail as been noted with this activity and wind profiles
remain very favorable for long-lived updrafts, along with a risk for
tornadoes. This activity should spread northeast as the warm front
advances slowly north ahead of the main short-wave trough.

..Darrow.. 04/04/2023

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...ILX...LSX...DVN...DMX...EAX...

LAT...LON   39299480 42479479 42429017 39269016 39299480 

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