CONDITIONAL SYMMETRIC INSTABILITY
UNDER LARGE VERTICAL WIND SHEAR
- THIS WILL CAUSE M.G SURFACES TO BE RELATIVELY HORIZONTAL
LARGE ANTICYCLONIC WIND SHEAR
- ABSOLUTE VORTICITY WILL APPROACH ZERO AT THE LEVEL WHERE CSI IS OCCURRING
- THIS PRODUCES WEAK INERTIAL STABILITY
LOW STATIC STABILITY
- ISENTROPIC SURFACE AND MORE IMPORTANTLY THE EQUIVALENT POTENTIAL TEMPERATURE (1e ) SURFACE BECOMES ALMOST VERTICAL
IS FAVORED UNDER THE FOLLOWING CONDITIONS