####018001015#### PENA01 KWNH 051200 @UHPISF000CN MPDSUM@V2.0@0101700060@12050524@@0NMCGPHMPD p@!' `' ` @ & B7)p&PNAM02@@f|||~~~@@f@@f@@Cd~}{zzz}|||||}~ @@d@@d@@3vM~~~|}||||z|{o{z{|}@@vM@@vM@@`0221 @@s0222 @@g0223 @@d&MESOSCALE DISCUSSION SUMMARY GRAPHIC @@d& OF ALL VALID MESOSCALE DISCUSSIONS AT @@d& TIME OF PRODUCT CREATION:@@d& ISSUED 05/05/2024 0000Z @@ dNOAA/NWS/NCEP@@d WEATHER PREDICTION CENTER @@d FOR COLOR VERSION SEE: @@d WWW.WPC.NCEP.NOAA.GOV @####018001905#### AWUS01 KWNH 050001 FFGMPD WVZ000-OHZ000-KYZ000-050328- Mesoscale Precipitation Discussion 0224 NWS Weather Prediction Center College Park MD 800 PM EDT Sat May 04 2024 Areas affected...upper OH River Valley Concerning...Heavy rainfall...Flash flooding possible Valid 042358Z - 050328Z SUMMARY...A lingering but likely diminishing flash flood threat will exist for portions of northeastern KY into southern OH and far western WV over the next 2-4 hours. Additional rainfall of 2-3 inches will be possible, but these higher end totals should remain quite localized. DISCUSSION...2345Z radar imagery showed a small cluster of thunderstorms over southern OH with WSW to ENE training over southern Brown and Adams counties. The training was occurring within confluent low level flow along the leading edge of convection where outflow has become aligned with the mean steering flow, producing an MRMS-estimated 1 to 2+ in/hr. SPC mesoanalysis data from 23Z showed 1000-1500 J/kg MLCAPE in place across the Upper OH River Valley. As an upstream upper level shortwave over the IN/KY border continues to track east early tonight, forcing will translate eastward and low level confluence is expected to fade, but overrunning of the rain-cooled outflow should allow for thunderstorms to persist over the next couple of hours, with a continued potential for training near the OH/KY border, possibly migrating into far western WV later tonight. Additional rainfall of 2-3 inches will be possible with continued rainfall rates of about 1-2 in/hr within areas of training. Otto ...Please see www.wpc.ncep.noaa.gov for graphic product... ATTN...WFO...ILN...JKL...LMK...RLX... ATTN...RFC...OHRFC...NWC... LAT...LON 39398340 39378203 38788158 38348178 37878233 37648288 37678374 38008426 38798435 ####018000981#### PENA01 KWNH 051200 @UHPISF000CN MPDSUM@V2.0@0101700060@12050524@@0NMCGPHMPD p@!' `' ` @ & B7)p&PNAM02@@"Fm|{{y{{{}}}}~@@Fm@@Fm@@f|||~~~@@f@@f@@Cd~}{zzz}|||||}~ @@d@@d@@s0222 @@g0223 @@Gm0224 @@d&MESOSCALE DISCUSSION SUMMARY GRAPHIC @@d& OF ALL VALID MESOSCALE DISCUSSIONS AT @@d& TIME OF PRODUCT CREATION:@@d& ISSUED 05/05/2024 0001Z @@ dNOAA/NWS/NCEP@@d WEATHER PREDICTION CENTER @@d FOR COLOR VERSION SEE: @@d WWW.WPC.NCEP.NOAA.GOV @