288
ACUS02 KWNS 220539
SWODY2
SPC AC 220537
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1237 AM CDT TUE SEP 22 2026
VALID 231200Z - 241200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
SEVERE THUNDERSTORMS ARE NOT EXPECTED TOMORROW (WEDNESDAY).
..SYNOPSIS
AN UPPER LOW WILL MEANDER OVER THE EASTERN U.S. WHILE AN UPPER RIDGE
BUILDS OVER THE PLAINS STATES, AND AN UPPER TROUGH GRADUALLY
AMPLIFIES OVER THE PACIFIC NORTHWEST TOMORROW (WEDNESDAY). SURFACE
HIGH PRESSURE WILL BUILD OVER THE NORTHEASTERN U.S. AND INTERIOR
WEST, LIMITING SEVERE THUNDERSTORM POTENTIAL. ONE SMALL EXCEPTION
MAY BE ALONG THE WINDWARD SIDE OF THE SOUTHERN APPALACHIANS,
PARTICULARLY OVER EASTERN TN. HERE, A SURFACE INVERTED TROUGH WILL
ALLOW LOW-LEVEL MOISTURE TO ADVECT NORTHWARD, WITH MID 60S F
DEWPOINTS BOOSTING MLCAPE TO NEAR 1000 J/KG (ALBEIT TALL AND THIN
PROFILES). A MID-LEVEL IMPULSE AND ACCOMPANYING 30+ KT 500 MB JET
WILL YIELD MODESTLY ELONGATED HODOGRAPHS AND 30 KTS OF EFFECTIVE
BULK SHEAR. CAM GUIDANCE CONSENSUS DEPICTS PULSE CELLULAR AND
MULTICELLULAR DEVELOPMENT BY AFTERNOON. AN INSTANCE OF HAIL
APPROACHING 1 INCH IN DIAMETER OR A STRONG GUST CAUSING TREE/WIRE
DAMAGE CANNOT BE RULED OUT.
..SQUITIERI.. 09/22/2026
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page