View looking north over Twin Oaks Valley at 3:00 A.M..

Midafternoon lightning storm over a farm in Minnesota.

Thunderheads (cumulonimbus clouds) over Palomar Mountain in September. Formed by uplifted
tropical moisture, these massive clouds bring thunder, lightning and flash floods in desert canyons.

Lightning stike on a Jeffrey pine (Pinus jeffreyi) near summit of El
Toro Peak in the Santa Rosa Mountains of Riverside County.