717
ACUS11 KWNS 022042
SWOMCD
SPC MCD 022041
SDZ000-022215-
MESOSCALE DISCUSSION 1445
NWS STORM PREDICTION CENTER NORMAN OK
0341 PM CDT THU JUL 02 2026
AREAS AFFECTED...EAST-CENTRAL SOUTH DAKOTA
CONCERNING...SEVERE THUNDERSTORM WATCH 439...
VALID 022041Z - 022215Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 439
CONTINUES.
SUMMARY...A CLUSTER OF SUPERCELLS WILL CONTINUE SLOWLY EASTWARD THIS
AFTERNOON AND EVENING.
DISCUSSION...VERY LARGE HAIL (UP TO 3 INCHES) AND BRIEF TORNADOES
HAVE BEEN REPORTED WITH THE SUPERCELL THAT BEGAN IN BRULE COUNTY AND
HAS MOVED SLOWLY NORTHEASTWARD. THE TORNADO THREAT WILL LIKELY
REMAIN AS THIS SUPERCELL MOVES ALONG THE STALLED OUTFLOW BOUNDARY.
THE CLUSTER OF SUPERCELLS FROM THE WEST IS MOVING EASTWARD QUICKLY
AND WILL LIKELY OVERTAKE THIS SUPERCELL WITHIN THE HOUR. ADDITIONAL
CONVECTION TO THE SOUTH (WITH A RECENT MEASURED 69 MPH WIND GUST)
INDICATES THE POTENTIAL FOR ADDITIONAL DEVELOPMENT AND SOME UPSCALE
GROWTH. IF THIS OCCURS AND THE CLUSTER ACCELERATES EAST/SOUTHEAST,
WATCH 439 MAY NEED TO BE EXPANDED.
..BENTLEY.. 07/02/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...FSD...ABR...UNR...
LAT...LON 44200004 44359866 44499818 44539736 44269715 43999740
43749821 43589904 43669967 43960022 44200004
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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