Shelf Cloud, Saskatchewan

Photograph by Gunjan Sinha, My Shot

This Month in Photo of the Day: The Stories Behind Your Shots
The day began as any other storm-chasing day in the Canadian Prairies. My girlfriend and I followed this particular storm from its birth and observed as it formed this gorgeous shelf structure eight hours later, at the end of the day. The photo was taken just southeast of Fillmore, Saskatchewan, along Highway 33. I used my Pentax K200D camera with f/5.6, 1/200-second exposure and a basic 55mm lens to capture this unforgettable moment. —Gunjan Sinha