893
ACUS11 KWNS 110026
SWOMCD
SPC MCD 110026
KYZ000-ILZ000-MOZ000-110200-

Mesoscale Discussion 1582
NWS Storm Prediction Center Norman OK
0726 PM CDT Fri Jul 10 2026

Areas affected...Parts of central/eastern MO into southern IL and
far western KY

Concerning...Severe Thunderstorm Watch 479...480...

Valid 110026Z - 110200Z

The severe weather threat for Severe Thunderstorm Watch 479, 480
continues.

SUMMARY...Small storm clusters capable of producing wind damage may
continue through the evening.

DISCUSSION...At 0015 UTC, a small but long-lived storm cluster is
moving along I-70 between Columbia and St. Louis. Some wind damage
was reported in the Columbia area, and strong inbound velocities are
currently observed from the KLSX radar. This cluster may continue
propagating along a surface theta-e gradient, with rich moisture
(dewpoints in the 70s F and PW above 2 inches), moderate buoyancy,
and sufficient low-level flow and deep-layer shear supporting a
continued damaging wind threat as this cluster approaches the
Mississippi River.

To the east, another storm cluster across southwest IL may also
continue to propagate along the theta-e/buoyancy gradient, posing a
threat of wind damage into a larger portion of southern IL through
the evening.

Farther south, a measured severe gust was recently observed near
West Plains in south-central MO, near another developing storm
cluster. Deep-layer shear is weaker in this area, but strong
downstream buoyancy may allow for modest upscale growth and a
continued wind damage threat this evening into southeast MO (as
depicted by some recent HRRR runs).

..Dean.. 07/11/2026

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

ATTN...WFO...PAH...MEG...LSX...SGF...

LAT...LON   36589224 38869203 39239186 39009000 38398832 37538806
            36818845 36568898 36509012 36549165 36589224

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