Severe Storm Outlook Narrative (AC)
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065 ACUS11 KWNS 222330 SWOMCD SPC MCD 222330 OHZ000-KYZ000-INZ000-230100- Mesoscale Discussion 0903 NWS Storm Prediction Center Norman OK 0630 PM CDT Wed May 22 2024 Areas affected...Portions of northern and western Kentucky...far southeastern Indiana...and southwest Ohio Concerning...Severe potential...Watch possible Valid 222330Z - 230100Z Probability of Watch Issuance...40 percent SUMMARY...A line of thunderstorms extending southwest to northeast along a cold front/surface trough have rapidly developed early this evening, with a couple of more robust updrafts noted near the KY/IN border. A few supercells will be possible over the next 3 hours. DISCUSSION...Enhanced surface convergence along a cold front near the KY/IN border has led to the development of a line of thunderstorms. An instability axis is noted along and ahead of this zone, where MLCAPE is around 2000 J/kg. Localized deep layer shear is sufficient for some storm organization, and a few embedded supercells will be possible through at least sunset. Waning instability through the evening, and a linear mode, should keep the severe hail threat localized. A severe damaging wind threat may accompany larger clusters or a bowing segment or two. Convective trends will be monitored for a possible watch. ..Barnes/Thompson.. 05/22/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ILN...LMK...IND... LAT...LON 37798657 37928660 38118653 38358624 38618587 38838564 38988544 39288521 40318408 40258361 39428355 39078382 38788396 38428418 37888470 37668524 37648584 37798657