580
ACUS11 KWNS 262352
SWOMCD
SPC MCD 262352
NEZ000-COZ000-270145-
MESOSCALE DISCUSSION 1342
NWS STORM PREDICTION CENTER NORMAN OK
0652 PM CDT FRI JUN 26 2026
AREAS AFFECTED...PARTS OF EASTERN COLORADO...WESTERN NEBRASKA AND
ADJACENT PORTIONS OF THE HIGH PLAINS
CONCERNING...SEVERE THUNDERSTORM WATCH 398...
VALID 262352Z - 270145Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 398
CONTINUES.
SUMMARY...WIDELY SCATTERED STRONG STORMS POSING A RISK FOR SEVERE
HAIL AND WIND WILL PROBABLY CONTINUE THROUGH 7-8 PM MDT, BEFORE
TENDING TO DIMINISH ACROSS MUCH OF THE REGION.
DISCUSSION...ISOLATED TO WIDELY SCATTERED STRONG THUNDERSTORM
DEVELOPMENT CONTINUES TO PROPAGATE INTO THE PLAINS, IN THE PRESENCE
OF MODEST, BUT SHEARED, 20-25 KT SOUTHWESTERLY DEEP-LAYER MEAN FLOW.
THIS IS WHERE A SEASONABLY MOIST BOUNDARY LAYER HAS BECOME
CHARACTERIZED BY MODERATE CAPE WITHIN A NARROW CORRIDOR CENTERED
NEAR THE KANSAS/NEBRASKA STATE BORDER INTO WESTERN NEBRASKA.
INCREASINGLY WARM ELEVATED MIXED-LAYER AIR CONTINUES TO ADVECT
ACROSS THE HIGH PLAINS, HOWEVER, AND THE ONSET OF BOUNDARY-LAYER
COOLING WILL BEGIN TO INCREASE INHIBITION THROUGH 00-02Z. HEIGHT
RISES FURTHER ALOFT ARE FORECAST TO ONLY SLOWLY WEAKEN AND SHIFT
EASTWARD THROUGH LATE EVENING.
STRONGER THUNDERSTORM DEVELOPMENT CURRENTLY NEAR SCOTTSBLUFF NE
SEEMS TO HAVE BEST POTENTIAL TO BE MAINTAINED BEYOND THE NEXT COUPLE
OF HOURS, AS LOW-LEVEL WIND FIELDS AND SHEAR STRENGTHEN THIS EVENING
IN CLOSER PROXIMITY TO THE DEEPENING SURFACE CYCLONE ACROSS WYOMING.
..KERR.. 06/26/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...LBF...GLD...PUB...BOU...CYS...
LAT...LON 42870370 42900196 42220169 41160198 40590207 39610229
37990228 37040290 38490372 39720339 40990373 42870370
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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