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Melanie Metz Trockman watches a large wedge tornado as it touches down near Jayton, TX . this supercell produced multiple tornados. The twister Sisters use multiple varations of weather radar which allow them to track the direction, proximity and…

Summary, Peggy Willenberg and Melanie Metz Trockman are the Twister Sisters, they are storm chasers. Armed with science and fueled by passion, they pursue tornadoes with a vengeance. Following these supercells and tornadoes the Twister Sisters log…

Waiting for fish to be swept into their open mouths, a group of caiman line up in a waterfall in the Brazilian Pantanal.

A monstrous derecho with winds exceeding 100 miles per hour roars over a golden wheat field as it strikes central Kansas on July 3, 2005. A derecho, pronounced day-RAY-cho, comes from the Spanish word meaning “straight ahead” and is…

A cedar waxwing snags a berry during a snowstorm in March in Augusta, Maine. Flocks of the birds descend on fruit trees as spring arrives.

A red-tailed hawk (Buteo jamaicensis) takes flight while carrying a rodent meal in downtown Washington, DC. According to the National Audubon Society, the red-tailed hawk is the most common and widespread American member of the Buteo genus. Hawks…

A steam cloud rises from Mount St. Helens newly active crater, 25 years after the massive 1980 eruption shattered millions of trees including those that remain as stumps along Windy Ridge on the mountain’s eastern side.

A gray jay swoops in for a landing amid the fir trees on the snow-covered shores of Odell Lake as the sun rises over the Oregon Cascades. Gray jays are able to survive winter at higher elevations because of their unique habit of caching food in…