Observed soundings - PIT and BUF - July 23, 2010 12z
Notes:
The observed sounding at 12z on the 23rd at Pittsburgh indicated a large positive area above the level of free convection, with CAPE values over 3000 J/kg. Flow aloft was westerly at 30 to 35 kts. Less instability was indicated at Buffalo (CAPE of 998 J/kg above the level of free convection), with mid-level westerly flow of 40 to 50 kts.
Slide 6