SPC 0-1 and 0-3 km EHI - 21z
Notes:
The combination of large CAPE and strong low-level shear concentrated along the warm front and any boundary left over from the morning MCS resulted in large energy helicity indices concentrated over northeast Pennsylvania. The 0-1 and 0-3 km EHI were both maximized over northeast Pennsylvania around 21z. .
Slide 14