ZCZC SPCSWOMCD ALL ACUS11 KWNS 022215 SPC MCD 022215 WVZ000-OHZ000-KYZ000-INZ000-022345- Mesoscale Discussion 0357 NWS Storm Prediction Center Norman OK 0515 PM CDT Tue Apr 02 2024 Areas affected...southern and central Ohio...northern Kentucky...and northern West Virginia. Concerning...Tornado Watch 78... Valid 022215Z - 022345Z The severe weather threat for Tornado Watch 78 continues. SUMMARY...A threat for all severe weather hazards will continue through the evening. DISCUSSION...Several supercells with a history of tornadoes are moving into southwest Ohio. These supercells will continue to pose a tornado threat as they move east across southern Ohio. Additional development is ongoing ahead of this activity which may also pose a tornado threat as storms mature. The 21Z ILN RAOB shows an uncapped, moderately unstable atmosphere with low-level shear favorable for tornadoes and some strong tornadoes. Expect a similar environment to spread across much of eastern and central Ohio over the next few hours as airmass recovery continues in the wake of earlier convection. In addition, winds have backed across Ohio with strong pressure falls in response to the rapidly deepening surface low near southern Lake Michigan which will continue to support a tornado threat. The greatest tornado threat is expected south of I-70 in Ohio where dewpoints of 63 to 65F and greater instability will support a greater tornado threat amid favorable low-level shear. Expansion of tornado watch 78 will be needed with an additional tornado watch likely across much of southern, eastern, and potentially northern Ohio. ..Bentley/Guyer.. 04/02/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PBZ...RLX...CLE...JKL...ILN...LMK... LAT...LON 38428530 39158498 40168472 40808346 40648182 39638104 39228112 38428216 38138324 38138457 38428530 NNNN