459
ACUS11 KWNS 270328
SWOMCD
SPC MCD 270327
INZ000-ILZ000-MOZ000-270430-

Mesoscale Discussion 0297
NWS Storm Prediction Center Norman OK
1027 PM CDT Thu Mar 26 2026

Areas affected...Central Illinois...central and southern Indiana

Concerning...Severe Thunderstorm Watch 76...

Valid 270327Z - 270430Z

The severe weather threat for Severe Thunderstorm Watch 76
continues.

SUMMARY...Isolated strong to occasionally severe thunderstorms may
persist beyond the scheduled 04z expiration of Severe Thunderstorm
Watch 76, and a local watch extension may be needed based on
near-term radar trends.

DISCUSSION...Isolated severe storms were noted along, and on the
cool side, of a cold front across southern portions of IN/IL at
0325z.  Low-level warm advection will contribute modest ascent
supporting maintenance of thunderstorm coverage for the next few
hours, and MUCAPE on the order of 750-1000 J/kg combined with ample
deep-layer shear may support a severe wind/hail threat for a couple
hours beyond the expiration of Severe Thunderstorm Watch 76 at 04z,
and a local watch extension may be needed.  With time, however, an
overall weakening trend is expected as instability continues to
diminish. As a result, a new watch is not anticipated.

..Bunting.. 03/27/2026

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

ATTN...WFO...IND...PAH...ILX...LSX...DVN...

LAT...LON   39719108 40279153 40429102 40469067 40459024 40408969
            40318859 40058755 39278665 38728677 38468727 39348899
            39528994 39719108

MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN