A Heavy Rainfall and Severe Weather Episode in Central South Carolina - Part II: Thermodynamic and Kinematic Features Leading to Severe Convection

On 22 October 1990, an isolated severe weather event occurred in central South Carolina. Between 2200 and 2300 UTC, a single thunderstorm created a non- continuous damage path from near the city of Orangeburg in central Orangeburg County to western Calhoun County south of St. Matthews. At first, it did not appear that atmospheric conditions were favorable for severe weather. However, a close examination of the synoptic features (Vescio 1991), particularly the environmental wind shear, revealed that conditions were indeed conducive to severe thunderstorm development. A detailed analysis of the wind shear as well as the stability indices at Charleston (CHS) will be presented.