810
ACUS11 KWNS 012138
SWOMCD
SPC MCD 012138
NEZ000-COZ000-WYZ000-012245-
MESOSCALE DISCUSSION 0940
NWS STORM PREDICTION CENTER NORMAN OK
0438 PM CDT MON JUN 01 2026
AREAS AFFECTED...PORTIONS OF SOUTHEAST WYOMING INTO EASTERN COLORADO
AND WESTERN NEBRASKA
CONCERNING...SEVERE THUNDERSTORM WATCH 262...
VALID 012138Z - 012245Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 262
CONTINUES.
SUMMARY...SUPERCELLS WILL CONTINUE ACROSS SOUTHEASTERN WYOMING INTO
EASTERN COLORADO OVER THE NEXT FEW HOURS, ACCOMPANIED BY A SEVERE
HAIL THREAT. A TORNADO IS ALSO POSSIBLE.
DISCUSSION...MULTIPLE SUPERCELLS, WITH A HISTORY OF SEVERE HAIL AND
OCCASIONAL LOW-LEVEL ROTATION (ESPECIALLY OVER CO EAST OF DENVER),
PERSIST AMID APPRECIABLE LOW-LEVEL UPSLOPE FLOW AND 40 KTS OF
EFFECTIVE BULK SHEAR, BUT MARGINAL INSTABILITY (I.E. 1000 J/KG
MLCAPE). GIVEN 8+ C/KM MID-LEVEL LAPSE RATES PRECEDING THE ONGOING
STORMS, SEVERE HAIL SHOULD CONTINUE OVER THE NEXT SEVERAL HOURS.
KFTG AND TDEN STORM RELATIVE VELOCITY DATA HAVE SHOWN LOW-LEVEL
ROTATION WITH STORMS EAST OF DENVER TO BE RELATIVELY BRIEF.
NONETHELESS, AMPLE LOW-LEVEL VERTICAL ORIENTED VORTICITY EXISTS NEAR
THESE STORMS, SO A LANDSPOUT/HYBRID TORNADO CANNOT BE RULED OUT IF
AN UPDRAFT CAN INGEST THIS VORTICITY FOR AN APPRECIABLE AMOUNT OF
TIME BEFORE BEING UNDERCUT BY OUTFLOW.
..SQUITIERI.. 06/01/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...LBF...GLD...PUB...BOU...CYS...
LAT...LON 39060458 40120498 40670512 41630482 42110446 42670382
42770315 42440248 41440219 40180216 39530222 39070244
38920292 38890371 39060458
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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