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Each weekday morning, OurAmazingPlanet takes the pulse of the Earth, reporting on natural phenomena and exploration news from around the globe.

Shark Fin Soup: Due to concerns about overfishing, shark fin soup is loosing its appeal in Hong Kong.

St. Louis Airport Tornado Video: Closed circuit television captured the moment a strong tornado hit the St. Louis airport on Friday (April 22).

Good Friday Tornado: The storm that hit the St. Louis airport eventually strengthened to an EF-4, the second highest rating on the Enhanced-Fujita tornado damage scale, with winds of up to 200 mph (322 kph). The EF-4 is the year's first.

Louisville Flooding: The worst may be to come for the surging Ohio River. Louisville and other towns are bracing for more flooding this week.

Previously on Our Daily Planet: Inside Japan's Nuclear Hot Zone and Indiana Tornadoes

Reach OurAmazingPlanet staff writer Brett Israel at Follow him on Twitter @btisrael.