Clearpost.online It's your post, so post it!

Mesoscale Discussion 1369
NWS Storm Prediction Center Norman OK
1125 PM CDT Mon Jul 04 2022

Areas affected...far northern Illinois into northern Indiana and
southwest Lower Michigan

Concerning...Severe Thunderstorm Watch 432...

Valid 050425Z - 050600Z

The severe weather threat for Severe Thunderstorm Watch 432
continues.

SUMMARY...The severe threat continues across Severe Thunderstorm
Watch 432. Damaging gusts and large hail are the main threats. A WW
issuance will likely be needed downstream as storms exit the watch
to the east and persist overnight.

DISCUSSION...Transient supercell structures from northern IL into
southwest MI have recently been merging into linear segments,
indicative of a developing MCS which is poised to continue tracking
east-southeastward across the OH Valley through the night. A veering
low-level jet will continue to advect a more buoyant airmass ahead
of the upscale-growing storms, with 1000-2000 J/kg MUCAPE and 40+
kts of effective bulk shear preceding the storms. A couple of severe
hailstones may acco*pany the more discrete storms in the near term.
However, damaging gusts will beco*e the primary concern as the MCS
materializes. A new watch issuance east of the current severe
thunderstorm watch will likely be needed soon to address the
eastward expanding threat.

..Squitieri/Guyer.. 07/05/2022

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

ATTN...WFO...IWX...GRR...LOT...MKX...DVN...

LAT...LON   42579003 42628819 42878686 43008624 42938548 42498462
            41878439 41388454 41088502 41028590 41238726 41568846
            41998947 42579003