ACUS11 KWNS 052052
SWOMCD
SPC MCD 052052=20
WIZ000-MNZ000-052215-

Mesoscale Discussion 0989
NWS Storm Prediction Center Norman OK
0352 PM CDT Fri Jun 05 2026

Areas affected...portions of west-central and southern Minnesota

Concerning...Severe Thunderstorm Watch 274...

Valid 052052Z - 052215Z

The severe weather threat for Severe Thunderstorm Watch 274
continues.

SUMMARY...The threat for large hail and damaging wind gusts
continues across newly issued Severe Thunderstorm Watch 274.

DISCUSSION...Several discrete/semi-discrete supercells have
developed just east of the SD/MN border as of 2030 UTC, with a
recent report of 1" hail and a measured gust of 56 kts. A corridor
of marginally steeper mid-level lapse rates (6.5+ C/km) analyzed via
latest objective analysis and modestly increasing mid-level flow
(sampled by the MPX VAD profile) immediately downstream of an
approaching shortwave trough will continue to promote the potential
for large hail as these storms propagate southeastward, with
damaging to occasionally severe wind gusts also possible. A locally
greater severe risk may evolve should a storm favorable interact
with a remnant outflow boundary from prior convection (evident on
visible satellite imagery and surface observations).=20

With time, storms may evolve into one or more bowing
segments/clusters, which would favor an attendant increase in the
threat for damaging wind gusts. Convective coverage and severity
should then gradually wane later this evening as nocturnal cooling/stabilization begins.

..Chalmers/Mosier.. 06/05/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9q9zmgV1GUL-9v4HvGCBZjf0MW6Ih2h7T7YndG14SGAzsWTlNAKL_oCtBFiZ5csmOJPGd3Bah= Nshcgmao_gyfUNwzgc$ for graphic product...

ATTN...WFO...ARX...MPX...FGF...FSD...

LAT...LON 43939370 43939421 44029487 44159531 44369563 44669588
45239599 45509593 45839578 46129535 46169509 46079462
45919440 45719417 45529390 45369363 45259328 45199293
45019283 44659273 44439273 44219284 44049302 44009318
43969331 43939370=20

MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


=3D =3D =3D
To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

--- SBBSecho 3.28-Linux
* Origin: Capitol City Online (1:2320/107)