871
ACUS11 KWNS 040137
SWOMCD
SPC MCD 040137
MNZ000-SDZ000-NDZ000-040300-

Mesoscale Discussion 0976
NWS Storm Prediction Center Norman OK
0837 PM CDT Wed Jun 03 2026

Areas affected...Parts of eastern SD into west-central/southwest MN

Concerning...Tornado Watch 271...

Valid 040137Z - 040300Z

The severe weather threat for Tornado Watch 271 continues.

SUMMARY...Some threat for hail, damaging wind, and possibly a
tornado may continue through the evening.

DISCUSSION...A small storm cluster with a history of producing
severe gusts across far northeast SD is approaching the SD/ND/MN
border intersection as of 0130 UTC. Low-level moisture and buoyancy
weaken with eastward extent, which will tend to limit the longevity
of the severe threat with this cluster into west-central MN.
However, given the current organization of this cluster, some threat
for damaging wind and isolated hail could spread east of WW 271
before a definitive weakening trend occurs. Given the expected
weakening trend with time, the need for downstream watch issuance is
uncertain.

Farther south, relatively disorganized convection is ongoing across
east-central SD. The environment across this area remains somewhat
favorable, with moderate buoyancy and sufficient deep-layer shear
for organized convection. The ongoing convection could produce
sporadic hail and isolated strong/damaging gusts. It remains
possible that a supercell or two could evolve across this area
through dusk, which would result in an increasing hail threat, along
with some tornado potential.

..Dean/Guyer.. 06/04/2026

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

ATTN...WFO...MPX...FGF...FSD...ABR...

LAT...LON   44799775 46009719 46189673 46249620 46209568 45649563
            45139564 44689573 44469600 44389617 44269648 44189712
            44229753 44799775

MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN