Freezing and such

Couldn’t be more plainly put than this from the NWS:
WEAK TROF OVER WESTERN NC WILL INTENSIFY AHEAD OF THE STRONG SHORT WAVE BEGINNING TO ROTATE AROUND THE LARGER UPPER VORTEX. VERY STRONG DYNAMICS (35/S+ VORT MAXIMA…150KT JET DIGGING SOUTH OF THE AREA INDUCING STRONG OMEGA…ETC) ASSOCIATED WITH THE SHORT WAVE WILL WRING OUT THE (FORTUNATELY [...]