"COOL TEMPERATURES ALOFT...STEEP LAPSE RATES AND MODEST LOW LEVEL
MOISTURE WILL SUPPORT A NARROW AXIS OF MODERATE SURFACE BASED
INSTABILITY IN VICINITY OF WARM FRONT ACROSS NEB INTO IA. FORCING
FOR ASCENT ASSOCIATED WITH THE EJECTING SHORTWAVE TROUGH WILL
INCREASE BY LATE MORNING SUPPORTING AN ARC OF STORMS IN VICINITY OF
WARM FRONT. VEERING LOW-LEVEL WINDS WITH LARGE 0-2 KM HODOGRAPHS AND
50 KT EFFECTIVE SHEAR WILL SUPPORT SUPERCELLS WITH TORNADOES AND
LARGE HAIL AS ACTIVITY DEVELOPS NWD. MODERATE RISK MIGHT BE EXPANDED
FARTHER NW TO INCLUDE A PORTION OF THIS AREA ON NEXT UPDATE."
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