Moscow swelters in record heat

Moscow sweltered in unseasonable heat on Sunday, with temperatures of nearly 29 degrees Celsius (84.2 Fahrenheit), a record for April since data collection began 130 years ago, authorities said.

Satellite images: Hook echoes, debris and damage

This image shows the radar reflectivity from the National Weather Service Doppler Radar in Birmingham, Ala. at 5:10 p.m. CDT on April 27, 2011, as a supercell thunderstorm moved across the city. The radar reflectivity is ...

Power of US tornado dwarfs Hiroshima bomb

Wind, humidity and rainfall combined precisely to create Monday's massive killer tornado in Oklahoma. The awesome amount of energy released dwarfed the power of the atomic bomb that leveled Hiroshima.

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