670
ACUS03 KWNS 271929
SWODY3
SPC AC 271928
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0228 PM CDT SUN SEP 27 2026
VALID 291200Z - 301200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
SEVERE POTENTIAL APPEARS LOW ON TUESDAY.
..SYNOPSIS
THE PRIMARY UPPER-LEVEL FEATURES OF INTEREST WILL BE THE MAIN LOW IN
THE SOUTHWEST THAT WILL PHASE WITH THE POST-TROPICAL REMNANTS OF
POLO. MOISTURE ADVECTING NORTHWARD WILL INTERACT WITH A WEAK SURFACE
BOUNDARY EXTENDING OVER MUCH OF THE PLAINS. THE UPPER LOW WILL
EVENTUALLY MOVE INTO THE SOUTHERN HIGH PLAINS DURING THE
EVENING/OVERNIGHT PERIOD. DEEP-LAYER FLOW, WITH A LARGE SOUTHERLY
COMPONENT, WILL INTENSIFY AS THIS OCCURS. SCATTERED TO NUMEROUS
STORMS WILL DEVELOP WITHIN THE SOUTHWEST AND SPREAD EASTWARD INTO
THE SOUTHERN HIGH PLAINS. CLOUD COVER WILL GENERALLY BE EXPANSIVE
AHEAD OF THE UPPER-LEVEL SYSTEM, LIMITING AFTERNOON HEATING. STORM
COVERAGE WILL BE GREATEST DURING THE EVENING AND OVERNIGHT. WIND
FIELDS WOULD SUPPORT SOME STRONGER GUSTS WITH CONVECTION DESPITE
LIMITED DESTABILIZATION. COUPLED WITH POOR MID-LEVEL LAPSE RATES
FROM THE TROPICAL AIRMASS AND LARGELY MERIDIONAL SHEAR VECTOR,
OVERALL POTENTIAL FOR ORGANIZED/SEVERE ACTIVITY APPEARS LOW.
..WENDT.. 09/27/2026
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