Jim Mendenhall Photos. Storm clouds with a cold front coming into a very warm front creating turbulence and lighting.August 28, 2016 copyright Jim Mendenhall 2016. Cold front collides with warm front and the resulting lighting, thunder and rain pass by Mt. Lebanon's Markham Elementary School. These were taken facing south east roughly facing toward the Laurel Highlands where Connellsville got 5 inches of rain in two hours. These are the property of Jim Mendenhall Photos only. Not any media company property. All rights reserved.