587
ACUS11 KWNS 231938
SWOMCD
SPC MCD 231937
IAZ000-MNZ000-MOZ000-NEZ000-232100-
MESOSCALE DISCUSSION 0503
NWS STORM PREDICTION CENTER NORMAN OK
0237 PM CDT THU APR 23 2026
AREAS AFFECTED...SOUTHEASTERN NEBRASKA AND WESTERN IOWA AND FAR
NORTHWEST MISSOURI
CONCERNING...TORNADO WATCH 134...
VALID 231937Z - 232100Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 134 CONTINUES.
SUMMARY...THE SEVERE RISK CONTINUES. STORMS SHOULD INCREASE IN
COVERAGE AND INTENSITY THROUGH THE AFTERNOON.
DISCUSSION...ACROSS WW 134, A BAND OF STRONG TO SEVERE THUNDERSTORMS
HAS DEVELOPED ALONG THE MODIFIED COLD FRONT FROM FAR NORTHWESTERN IA
INTO EASTERN NE. A MIX OF LINE SEGMENTS AND SUPERCELLS HAS BEEN
OBSERVED SO FAR. AREA VADS AND 18Z RAOBS SHOW THE ENVIRONMENT
REMAINS UNSTABLE (MLCAPE 2000-2500 J/KG) AND MODERATELY SHEARED
(35-45 KT EBWD), CONDUCIVE FOR SEVERE STORMS. ADDITIONAL STORM
DEVELOPMENT IS LIKELY THROUGH THE AFTERNOON AS THE COLD FRONT MOVES
EASTWARD. HAIL AND DAMAGING WINDS ARE EXPECTED WITH THESE STORMS AS
THEY CONTINUE TO MATURE. WHILE LOW-LEVEL HODOGRAPHS REMAIN MODEST,
SURFACE PRESSURE FALLS AND A MIXED MODE OF SUPERCELLS AND LINE
SEGMENTS WILL LIKELY SUPPORT A RISK FOR A COUPLE TORNADOES.
RADAR TRENDS AND RECENT CAM GUIDANCE SUGGEST THE ADDITIONAL STORM
COVERAGE SHOULD RESULT IN SLOW UPSCALE GROWTH INTO ONE OR MORE
LINEAR CLUSTERS. WITH A TRANSITION TO A MORE LINEAR MODE, THE
DAMAGING GUST THREAT WOULD LIKELY INCREASE, ALONG WITH THE POTENTIAL
FOR EMBEDDED TORNADOES THROUGH THE AFTERNOON HOURS. GIVEN THIS, THE
SEVERE RISK CONTINUES OVER MUCH OF WW134.
..LYONS.. 04/23/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...MPX...DMX...EAX...FSD...OAX...
LAT...LON 40109733 41799626 43519554 43529471 43509354 43009345
42419369 40829403 40399477 40189520 40069561 40109733
MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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