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
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