Severe Weather Potential for July 17th

A cold front moved across the region yesterday during the afternoon and evening. This cold front has stalled to the south and has become stationary. This stationary front during the afternoon into the evening will back up into the area as a warm front. This will bring some warmer air across the eastern side with temps in the 80s. Meanwhile another cold front will be approaching the region late on friday. 
Along the original stationary front a wave of low pressure will develop. This low pressure area looks to move over Southeast PA before moving to the east and dissipating.
CAPE levels are marginal at best with 500-1500 generally being the range and the LI is anywhere from 0 to -4, which again is very marginable. However...shear looks to be decent across the area once again with 30 knots + and lapse rates are on the order of 6.0-7.0 across the region. 
With another cold front approaching the region this could serve off as a trigger to support severe weather. Best area for severe weather will be southern sections....