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Chasing storms

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Gene Blevins/Reuters
Storm chaser photographer Brad Mack watches thunderstorms supercells pass through areas in Kamay, Texas, April 23, 2014. 

Thunder storms on Wednesday were a precursor of what's forecast for this coming weekend, that could be the most significant multi-day tornado outbreak in the U.S. since 2011. 

Storm Chasers

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Gene Blevins/Reuters
Storm chaser photographer Brad Mack checks out the radar on his laptop as thunderstorms supercells pass through areas in Erick, Okla., late April 23, 2014. 


Storm Chasers

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Gene Blevins/Reuters
Huge lightning strikes cross the skies as thunderstorms supercells pass through areas in Archer City, Texas, April 23, 2014.

Storm Chasers

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Gene Blevins/Reuters
A storm chaser photographer looks at thunderstorms supercells pass through areas in Vinson, Okla., late April 23, 2014.

Storm Chasers

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Gene Blevins/Reuters
Huge lightning strikes hit the ground along a highway as thunderstorms supercells pass through areas in Kamay, Texas, April 23, 2014. 

Storm Chasers

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Gene Blevins/Reuters
A large TVS (tornadic vortex signature) thunderstorm supercell passes over storm chaser Brad Mack in Graham, Texas, April 23, 2014. 

Storm Chasers

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Gene Blevins/Reuters
A large TVS (tornadic vortex signature) thunderstorm supercell passes over Newcastle, Texas, April 23, 2014.
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