165 

ACUS11 KWNS 192026

SWOMCD

SPC MCD 192026 

OHZ000-INZ000-192130-



Mesoscale Discussion 0791

NWS Storm Prediction Center Norman OK

0326 PM CDT Tue May 19 2026



Areas affected...Central Indiana into Western Ohio



Concerning...Severe potential...Severe Thunderstorm Watch likely 



Valid 192026Z - 192130Z



Probability of Watch Issuance...80 percent



SUMMARY...As convective coverage has increased this afternoon across

central and northern Indiana, it has gradually begun to organize

into line-segments/clusters. As these storms continue to organize,

they could pose a damaging wind threat... particularly with any

bowing line segments that may develop.



DISCUSSION...Convective coverage has continued to increase over

central and northern Indiana, especially over the last half hour.

Recent MRMS trends show loose organization into line segments ahead

of an environment characterized by strong DCAPE, steep low-level

lapse rates, and well-mixed boundary layer profiles. While there is

some uncertainty to which degree these storms will organize due to

the relative lack of deep-layer shear, the environment supports the

potential for damaging straight-line thunderstorm winds. This threat

will be maximized along the leading edge of any bowing segments that

develop.



..Halbert/Hart.. 05/19/2026



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



ATTN...WFO...ILN...IWX...IND...



LAT...LON   39508749 39988650 40498599 40798571 41048525 41248503

            41218434 40958411 40488429 39928458 39468489 39168512

            38888564 38878618 38928679 39018723 39208741 39508749 



MOST PROBABLE PEAK WIND GUST...55-70 MPH

MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN