838
ACUS11 KWNS 262013
SWOMCD
SPC MCD 262013
COZ000-NEZ000-WYZ000-262115-
MESOSCALE DISCUSSION 1334
NWS STORM PREDICTION CENTER NORMAN OK
0313 PM CDT FRI JUN 26 2026
AREAS AFFECTED...PORTIONS OF NORTHEASTERN COLORADO...SOUTHEASTERN
WYOMING...AND FAR WESTERN NEBRASKA
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 262013Z - 262115Z
PROBABILITY OF WATCH ISSUANCE...80 PERCENT
SUMMARY...A FEW THUNDERSTORMS WITH LARGE HAIL AND SEVERE GUSTS ARE
POSSIBLE THIS AFTERNOON ACROSS PORTIONS OF NORTHEASTERN COLORADO,
SOUTHEASTERN WYOMING, AND FAR WESTERN NEBRASKA. A WATCH MAY BE
NEEDED TO COVER THIS THREAT.
DISCUSSION...A LARGE UPPER TROUGH IS IN PLACE ACROSS THE
NORTHWESTERN CONUS WITH A SUBTLE JET PUSHING EASTWARD OVER THE
CENTRAL ROCKIES THIS AFTERNOON. STORMS ARE PREFERENTIALLY DEVELOPING
ALONG A COUPLE CONVERGENCE BOUNDARIES ACROSS PORTIONS OF THE HIGH
PLAINS. THE FLOW ENHANCEMENT FROM THE JET RESULTS IN LENGTHENED
HODOGRAPHS, WHICH SHOULD RESULT IN ENOUGH SHEAR FOR AT LEAST A FEW
SUPERCELLS.
WITH ANY SUPERCELLS THAT DO FORM, A FEW INSTANCES OF LARGE HAIL ARE
POSSIBLE DUE TO THE STRAIGHT HODOGRAPHS AND RELATIVELY LOW FREEZING
LEVELS. STORMS MAY CLUSTER AS THE AFTERNOON PROGRESSES, WHICH MAY
RESULT IN A THREAT FOR SEVERE GUSTS DUE TO THE DRY BOUNDARY LAYER
AND MODEST LOW- AND MID-LEVEL FLOW. ONE LIMITING FACTOR FOR WIND IS
SOME RESIDUAL INHIBITION ACROSS PARTS OF THE HIGH PLAINS, THOUGH
THIS IS EXPECTED TO ERODE WITH CONTINUED STRONG HEATING. A WATCH
WILL LIKELY BE NEEDED TO COVER THIS THREAT.
..SUPINIE/GUYER.. 06/26/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...GLD...PUB...BOU...CYS...
LAT...LON 40180486 41600487 42170478 42370419 42060336 40850299
39610286 38200360 38100442 38410473 40180486
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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