508
ACUS03 KWNS 251930
SWODY3
SPC AC 251929
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0229 PM CDT SUN OCT 25 2026
VALID 271200Z - 281200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
SEVERE THUNDERSTORMS ARE UNLIKELY TUESDAY.
..SYNOPSIS
AN UPPER-LEVEL CYCLONE OVER THE NORTHERN ROCKIES WILL GRADUALLY
WEAKEN AS IT TRANSITIONS TO AN OPEN WAVE OVER THE NORTHERN PLAINS
AND SOUTHERN CANADA TUESDAY. BROAD AND WEAK SOUTHWEST FLOW ALOFT
WILL CONTINUE OVER THE SOUTHWEST AND PLAINS AS RIDGING BUILDS OVER
THE SOUTHEAST. A WEAK SURFACE LOW AND TRAILING FRONT INITIALLY OVER
THE CENTRAL PLAINS WILL LIFT NORTHWARD SLOWLY WITH THE UPPER CYCLONE
THROUGH THE PERIOD. MODEST SOUTHERLY LOW-LEVEL FLOW WILL SUPPORT 50S
TO LOW 60S F SURFACE DEWPOINTS, SUFFICIENT FOR MODEST
DESTABILIZATION AHEAD OF THE FRONT. ISOLATED THUNDERSTORMS ARE
POSSIBLE WITHIN THE BROADER WARM ADVECTION REGIME ACROSS PARTS OF
THE PLAINS FROM SOUTH TX INTO THE MID-MO VALLEY. HOWEVER, WEAK
INSTABILITY AND VERTICAL SHEAR SUGGESTS LITTLE, IF ANY, CONVECTIVE
ORGANIZATION IS LIKELY. THIS SHOULD PRECLUDE MORE THAN SPORADIC
SEVERE POTENTIAL.
..LYONS.. 10/25/2026
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