Supercell
STORMY WEATHER, there’s no sun up in the sky. But there’s plenty else. Nebraskan photographer Kevin Erskine captures epic doings in the skies over the Great Plains, where layers of cool and warm, dry and humid air clash to create tornadoes, lightning, and, if conditions are right, an especially combustible tempest called the supercell—a massive swirling thunderstorm whose powerful updrafts often precede twisters. Erskine’s artistic forebears include renowned skyscape painters J. M. W. Turner and Jacob van Ruisdael, who often devoted more than half of their canvas to the great swath of
