689
ACUS11 KWNS 270617
SWOMCD
SPC MCD 270617
KSZ000-OKZ000-270715-
MESOSCALE DISCUSSION 0561
NWS STORM PREDICTION CENTER NORMAN OK
0117 AM CDT MON APR 27 2026
AREAS AFFECTED...WESTERN OKLAHOMA INTO SOUTHERN KS
CONCERNING...TORNADO WATCH 155...
VALID 270617Z - 270715Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 155 CONTINUES.
SUMMARY...THE THREAT FOR AN ISOLATED SUPERCELL REMAINS ALONG THE
WARM FRONT INTO SOUTHEAST KANSAS, WHILE THE SEVERE THREAT IS
DIMINISHING TO THE SOUTHWEST INTO OKLAHOMA.
DISCUSSION...THE PRIMARY MID-UPPER JET IS EJECTING
EAST-NORTHEASTWARD FROM THE TX PANHANDLE TOWARD KS, AND AN
ASSOCIATED SURFACE CYCLONE IN THE EASTERN OK PANHANDLE WILL LIKEWISE
CONTINUE TO DEVELOP EAST-NORTHEASTWARD. SOUTH OF THE CYCLONE TRACK
AND BENEATH THE JET CORE, VEERING OF LOW-LEVEL FLOW TO MORE WESTERLY
WILL CONTINUE ACROSS WESTERN AND NORTHERN OK, WITH RAPID DRYING
EXPECTED ABOVE THE SURFACE. DESPITE THE REMAINING NEAR-SURFACE
MOISTURE AND ASSOCIATED BUOYANCY, THE DRYING ABOVE THE SURFACE AND A
FAIRLY WARM ELEVATED MIXED LAYER SUGGEST THAT ADDITIONAL STORM
DEVELOPMENT IS UNLIKELY INTO NORTHWEST OK. MEANWHILE, SOME
POTENTIAL FOR ISOLATED SUPERCELL DEVELOPMENT WILL PERSIST IN THE
SHORT TERM ALONG THE WARM FRONT INTO SOUTHEAST KS, WHERE VWPS SHOW
VERY LARGE/CURVED HODOGRAPHS COINCIDENT WITH UPPER 60S
BOUNDARY-LAYER DEWPOINTS.
..THOMPSON.. 04/27/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...TSA...ICT...
LAT...LON 37069562 36999652 37069711 37449709 37649674 37669606
37559565 37289554 37069562
MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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