964
ACUS11 KWNS 272227
SWOMCD
SPC MCD 272226
KYZ000-INZ000-280030-
MESOSCALE DISCUSSION 0578
NWS STORM PREDICTION CENTER NORMAN OK
0526 PM CDT MON APR 27 2026
AREAS AFFECTED...SOUTHERN IN INTO NORTH-CENTRAL KY
CONCERNING...SEVERE THUNDERSTORM WATCH 159...
VALID 272226Z - 280030Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 159
CONTINUES.
SUMMARY...ISOLATED STRONG THUNDERSTORMS MAY PERSIST FOR A FEW HOURS
LATE THIS AFTERNOON/EARLY THIS EVENING, POSING MAINLY A RISK FOR
HAIL AND GUSTY WINDS. HOWEVER, THE SEVERE RISK MAY INCREASE AGAIN
LATER TONIGHT.
DISCUSSION...CONVECTION IS ONGOING ACROSS SOUTHERN IN ALONG OUTFLOW
NORTH OF THE OHIO RIVER. TRAINING CONVECTION AND CLOUD COVER
EXTENDING SOUTHWARD IN CENTRAL KY IS LIMITING INSTABILITY AND
RESULTING IN AT LEAST WEAK INHIBITION. SOME LINGERING RISK FOR
MARGINALLY SEVERE HAIL AND GUSTY WINDS IS EXPECTED OVER THE NEXT FEW
HOURS. LATER THIS EVENING INTO TONIGHT, AIRMASS RECOVERY IS EXPECTED
AS STRONGER WARM ADVECTION OVERSPREADS THE LOWER OH VALLEY AND A
COLD FRONT APPROACHING THE MID-MS VALLEY ADVANCES EASTWARD.
A RELATIVE LULL IN SEVERE POTENTIAL MAY DEVELOP IN THE SHORT TERM
DUE TO CONVECTIVE CONTAMINATION. SEVERE THUNDERSTORM WATCH 159 COULD
BE LOCALLY EXTENDED TO COVER THE SHORT TERM MARGINAL SEVERE
POTENTIAL. HOWEVER, INCREASING SEVERE POTENTIAL WILL LIKELY HAVE TO
BE ADDRESSED LATER THIS EVENING ACROSS PORTIONS OF THE REGION.
..LEITMAN.. 04/27/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...ILN...LMK...IND...PAH...
LAT...LON 39018496 38298486 37758538 37478628 37698668 38328706
38848719 39188698 39398649 39298538 39018496
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
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