ACUS11 KWNS 180428
SWOMCD
SPC MCD 180427=20
OHZ000-KYZ000-INZ000-180600-

Mesoscale Discussion 1175
NWS Storm Prediction Center Norman OK
1127 PM CDT Wed Jun 17 2026

Areas affected...Southeastern Indiana...southwest Ohio...and far
northern Kentucky

Concerning...Tornado Watch 344...347...

Valid 180427Z - 180600Z

The severe weather threat for Tornado Watch 344, 347 continues.

SUMMARY...The tornado risk is focusing across southeastern Indiana
into southwestern Ohio tonight -- within Tornado Watches 344/347.

DISCUSSION...Within a broad area of stratiform rain spreading across
IN into OH, lower 70s temperatures amid upper 60s dewpoints are
still yielding surface-based inflow parcels for a few
deeper/embedded rotating updrafts. The ILN VWP is sampling the core
of a 60-kt LLJ overspreading this activity, which is supporting a
very large, clockwise curved hodograph (around 450 m2/s2 0-500m
SRH). Despite marginal buoyancy, this wind profile is supporting
efficient mesocylogenesis from southeastern IN into southwestern OH.
The primary tornado risk should continue east-northeastward beneath
the core of the LLJ and in a region of enhanced surface pressure
falls tonight. Given the strong low-level shear/streamwise vorticity
and supercell structures, a strong tornado remains possible with the longer-lived storms.

..Weinman.. 06/18/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5e40_vLcnRXrlElK9e43qp2RYakL1nv_Lh9MCIFXqiUwE_iD7aWT7kT6b4UTnF5cT4apgnqB4= CWmikpm-rST2v6_FF0$ for graphic product...

ATTN...WFO...ILN...LMK...IND...

LAT...LON 38628498 38698588 39048618 39388607 39878423 39838384
39658351 39338339 38928356 38718403 38628498=20

MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


=3D =3D =3D
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