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. Eric Whitney hide caption

itoggle caption Eric Whitney

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. Brennan Linsley/AP hide caption

itoggle caption Brennan Linsley/AP

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 hide caption

itoggle caption John Gibson/Getty Images

In this Jan. 18 photo provided by the NYU Langone Medical Center, a technician examines mice to determine their health at the hospital's complex in New York. New York University/AP hide caption

itoggle caption New York University/AP

In Clarksville, Mo., Bob Bailey adjusts a pump as he tries to keep floodwater from the Mississippi River out of a rental property Sunday. The small community has worked for days to build a makeshift sandbag levee. Jeff Roberson/AP hide caption

itoggle caption Jeff Roberson/AP

An Emergency Ministry soldier helps to repair religious icons in a church hit by flood water in the town of Nizhnebakansky, about 750 miles south of Moscow, on Tuesday. Sergey Ponomarev/AP hide caption

itoggle caption Sergey Ponomarev/AP

A levee protects a home surrounded by floodwater from the Yazoo River near Vicksburg, Miss., May 18, 2011. Scott Olson/Getty Images hide caption

itoggle caption Scott Olson/Getty Images