202
ACUS11 KWNS 220436
SWOMCD
SPC MCD 220436
MOZ000-ARZ000-OKZ000-KSZ000-220600-
MESOSCALE DISCUSSION 1247
NWS STORM PREDICTION CENTER NORMAN OK
1136 PM CDT SUN JUN 21 2026
AREAS AFFECTED...PORTIONS OF SOUTHERN MISSOURI AND NORTHERN ARKANSAS
CONCERNING...SEVERE THUNDERSTORM WATCH 366...
VALID 220436Z - 220600Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 366
CONTINUES.
SUMMARY...ONGOING THUNDERSTORMS ACROSS THE REGION HAVE REMAINED
BELOW SEVERE LIMITS THIS EVENING AND ARE NOT LIKELY TO INTENSIFY
FURTHER. AS SUCH, PORTIONS OR ALL OF SEVERE THUNDERSTORM WATCH #366
CAN BE CANCELED EARLY.
DISCUSSION...THUNDERSTORMS ARE ONGOING ACROSS PORTIONS OF
SOUTH-CENTRAL MISSOURI THIS EVENING. DESPITE WHAT APPEARS TO BE A
FAVORABLE THERMODYNAMIC AND KINEMATIC ENVIRONMENT (MUCAPE BETWEEN
2000-3000 J/KG AND EFFECTIVE-LAYER SHEAR ON THE ORDER OF 40 KNOTS,
THESE THUNDERSTORMS HAVE STRUGGLED TO INTENSIFY THIS EVENING. THIS
MAY BE A SUBTLE CONSEQUENCE OF THE ONGOING MCV-AIDED CONVECTION
FARTHER EAST.
WITH THE LOSS OF DIURNAL HEATING AND THE LACK OF A FOCUSED LOW-LEVEL
OR LARGE-SCALE FORCING MECHANISM, THE EXPECTATION IS FOR ONGOING
THUNDERSTORMS TO REMAIN BELOW SEVERE LIMITS. AS SUCH PORTIONS, OR
PERHAPS ALL, OF SEVERE THUNDERSTORM WATCH #366 CAN BE CANCELED
BEFORE EXPIRATION AT 06Z/01 AM CDT.
..MARSH.. 06/22/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...PAH...MEG...LSX...LZK...SGF...TSA...
LAT...LON 37219494 37609280 37519087 36928957 36388980 35979111
35999251 36149388 36589485 36859504 37219494
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page