The Sciences

Severe storms over U.S. seen from space

Bad AstronomyBy Phil PlaitApr 30, 2011 11:00 AM

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On April 27, 2011, huge storms spawned enormous tornadoes which swept across the southeastern U.S., doing severe damage and killing over 200 people. It was the worst natural disaster in the U.S. since Hurricane Katrina in 2005. The NASA/NOAA Geostationary Operational Environmental Satellite, or GOES, takes high-resolution images every few minutes. The animation below shows the southeast U.S. from GOES, and you can watch the storms erupt.

[embed width="610"]http://www.youtube.com/watch?v=WHLdK8JkqQU[/embed]

A warm, moist air mass from the south collided with a cold air mass over the States. This is how summer storms usually form, but this situation

was amplified by the jet stream, which was blowing between them. This generated fierce local systems that spawned over 150 tornadoes in the course of a single day. It's unclear but unlikely this particular event was due to global warming, but many models indicate such storms will increase in number as the planet warms. Despite a lot of political noise

, the overwhelming scientific consensus is that global warming is indeed real. We may see more storms like this in the future. NOAA/NASA, GOES Project Science team. Original animation by Jesse Allen.


Related posts: - Comic takedown of global warming denial - How not to fight antiscience zealotry - Antiscience party - A firehose of global warming news, both good and bad

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