This is a calculated flood map for the city of St. Louis. Water depth goes from deep (dark blue) to shallow (white, light blue). Floodwater can come from the Illinois, Upper Mississippi and Missouri rivers, as well as from heavy local precipitation.
Courtesy of Dag Lohmann/Katrisk
A man shoots a tranquilizer dart to put a hippopotamus to sleep at a flooded street in Tbilisi, Georgia, on Sunday. At least eight people died and several are missing as a result of heavy rainfall and floods overnight in the Georgian capital.
Simone Wester and her 7-month old son Jeremiah walk through the flood waters outside her apartment building at the Guardian Court Apartments in Louisville, Kentucky, on Friday.
Timothy D. Easley/AP
Cindy Minnix waits for a bus in a flooded street on Oct. 18, 2012, in Miami Beach. A changing climate is making floods related to high tides more frequent, scientists say.
Joe Raedle/Getty Images
A car is abandoned on a flooded street following heavy rains and flash flooding in Bay Shore, N.Y., on Wednesday. The South Shore of Long Island along with the tri-state region saw record-setting rain that caused roads to flood.
Andrew Theodorakis/Getty Images
A military amphibious vehicle heads down a flooded street in Obrenovac, Serbia. Residents were preparing for a river surge Monday that threatened to inundate Serbia's main power plant.
Flooded houses in Topcic Polje, near Zepce, in Bosnia, on Friday. The heaviest rains and floods in 120 years have hit Bosnia and Serbia, killing at least four people and forcing hundreds out of their homes.
One bad winter storm could leave Estes Park Medical Center isolated and unable to transfer seriously ill patients to facilities with intensive care units and other specialized services.
A city worker talks on his phone while surveying high water levels on Boulder Creek following overnight flash flooding in downtown Boulder, Colo. today. Flash flooding in Colorado has left two people dead and the widespread high waters are keeping search and rescue teams from reaching stranded residents and motorists in Boulder and nearby mountain communities.
Houses damaged along the edge of Cougar Creek in Canmore, Canada. Widespread flooding caused by torrential rains washed out bridges and roads prompting the evacuation of thousands on Thursday.
John Gibson/Getty Images