916
ACUS11 KWNS 240700
SWOMCD
SPC MCD 240700
MOZ000-ARZ000-OKZ000-240830-

Mesoscale Discussion 0515
NWS Storm Prediction Center Norman OK
0200 AM CDT Fri Apr 24 2026

Areas affected...Southern Missouri...northwest Arkansas and
northeast Oklahoma

Concerning...Severe Thunderstorm Watch 140...

Valid 240700Z - 240830Z

The severe weather threat for Severe Thunderstorm Watch 140
continues.

SUMMARY...A line of strong-isolated severe storms will persist for
the next couple of hours while spreading eastward across southern
Missouri and southeastward across northeast Oklahoma and northwest
Arkansas.

DISCUSSION...Convection has evolved into an extensive line across
north central and northeast OK into southwest MO and extreme
northwest AR.  The more north-south part of the line in southwest MO
is oriented more orthogonal to the deep-layer shear vectors,
suggesting upright convection may remain closely tied to the leading
edge of the cold pool.  Severe potential will persist in the
corridor where the north-south segment intersects the more east-west
outflow, though decreasing buoyancy with eastward extent casts some
doubt on the duration and magnitude of the severe threat.  Farther
west, an extensive cold pool has sagged south of the primary
convection in OK, where a 50+ kt low-level jet is supporting renewed
storm development atop the cold pool.  Overall, the magnitude of the
wind/hail threat should slowly decrease over time.

..Thompson.. 04/24/2026

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...LZK...SGF...TSA...

LAT...LON   35819253 35509365 35339455 35309522 35459609 35629640
            35899642 36169538 36459424 36879352 37549316 37699286
            37759211 37579169 36689162 35819253

MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN