ZCZC SPCSWOMCD ALL
ACUS11 KWNS 080416 
SPC MCD 080416 
OHZ000-KYZ000-INZ000-ILZ000-080615-

Mesoscale Discussion 0689
NWS Storm Prediction Center Norman OK
1116 PM CDT Tue May 07 2024

Areas affected...Ohio Valley

Concerning...Tornado Watch 197...198...199...

Valid 080416Z - 080615Z

The severe weather threat for Tornado Watch 197, 198, 199 continues.

SUMMARY...Scattered severe thunderstorms will sag southeast across
the Ohio Valley into the early morning hours.

DISCUSSION...Great Lakes short-wave trough is shifting east late
this evening and the primary corridor of large-scale ascent is
focused across the lower Great Lakes/upper OH Valley. Deep
southwesterly flow will persist in the wake of this feature, and
water-vapor imagery does not depict any appreciable upstream
disturbances. Northern corridor of stronger instability extends into
this region, and ongoing scattered severe convection should continue
to sag southeast toward the OH River Valley over the next several
hours. Large hail threat appears to have waned a bit but several
supercells persist along this corridor. Given the observed shear,
some tornado risk continues, along with hail approaching 1-1.5
inches.

..Darrow.. 05/08/2024

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

ATTN...WFO...PBZ...RLX...CLE...ILN...LMK...IND...PAH...ILX...

LAT...LON   39488517 39478344 40958158 40548068 38768274 38538590
            37368859 37878905 39298631 39488517 

NNNN