Rescue in Hoboken: Much of the New Jersey city remains flooded and the National Guard has been called in to help rescue stranded residents. Tuesday, this was the scene on one of the city's flooded streets. Eduardo Munoz /Reuters /Landov hide caption

itoggle caption Eduardo Munoz /Reuters /Landov

Broken and non-functional traffic lights hang over an intersection in Atlantic City, N.J., on Monday. Seth Wenig/AP hide caption

itoggle caption Seth Wenig/AP

This satellite image from the National Hurricane Center in Miami shows Sandy at 10:03 a.m., Sunday. AP hide caption

itoggle caption AP

Workers cover an entrance with plywood at a subway station in New York City in preparation for flooding from Hurricane Sandy. Mary Altaffer/AP hide caption

itoggle caption Mary Altaffer/AP

In this satellite image provided Friday by the National Oceanic and Atmospheric Administration, Hurricane Sandy's huge cloud extent of up to 2,000 miles churns over the Bahamas, as a line of clouds associated with a powerful cold front approaches the East Coast of the U.S. Handout/Getty Images hide caption

itoggle caption Handout/Getty Images

National Hurricane Center's "5-day forecast cone" at 2 p.m. ET today (Oct. 26). www.nhc.noaa.gov hide caption

itoggle caption www.nhc.noaa.gov

Jan. 21, 2012: A winter scene in Brooklyn, N.Y. Snow may be a relatively rare sight this coming winter in the U.S. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

The redder the shading, the further above average were the temperatures in September. NOAA's National Climatic Data Center hide caption

itoggle caption NOAA's National Climatic Data Center

In Silver Spring, Md., on Monday, Matt MacCartney was one of many workers dismantling fallen trees that took down power lines. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images

Where you're most likely to be in the path of a derecho, and how often. National Oceanic and Atmospheric Administration hide caption

itoggle caption National Oceanic and Atmospheric Administration