The Majestic Supercell
Unusual in such close proximity, two high-based, low-precipitation (LP) supercells drift across the western Nebraska sky in opposing stages of marginal supercellular organization, ships of vapor passing in the daylight. The right (northern) storm, small and shrinking, had been the first, but no longer produced noticeable rain, and would be mere wisps of remnant cloud material within another half hour. It was being supplanted by the newer storm at left, which was growing an anvil vigorously, expanding its updraft, and offering its earliest visual and radar evidence of storm-scale rotation.
21 N Mitchell NE (19 Jun 10), looking W