Doug Jones, owner of Piedmont Biofarm in Pittsboro, N.C., waters vegetables as temperatures in the South soar, Friday, June 29. Triple-digit temperatures are expected for several days in North Carolina. Gerry Broome/AP hide caption

itoggle caption Gerry Broome/AP

Branches and power lines littered the nation's capital after bruising storms swept through the Mid-Atlantic region on Friday night. Win McNamee/Getty Images hide caption

itoggle caption Win McNamee/Getty Images

Before the start of the Boston Marathon this morning, a runner grabbed a bottle of water from among the hundreds lined up on a table in Hopkinton, Mass. Stew Milne/AP hide caption

itoggle caption Stew Milne/AP

This photo provided by the Amarillo/Potter/Randall Office of Emergency Management shows Potter County firefighter Matt Dryden standing next to a wall of hail on Wednesday near Amarillo, Texas. The hail was pushed into drifts of up to 4-feet. AP hide caption

itoggle caption AP

A trio get a closer look at the large waves cresting over the seawall just south of Nome's Front Street in Nome, Alaska, Wednesday., Nov. 9, 2011. Tyler Rhodes/AP Photo hide caption

itoggle caption Tyler Rhodes/AP Photo

Miniimah Rashid, 13, let the water from one of the fountains at the Windsor Village Spray Park in Indianapolis run over her face as temperatures rose Tuesday (July 19, 2011). Michael Conroy/AP hide caption

itoggle caption Michael Conroy/AP

As Florida temperatures hover in the 90's, boys use a swing rope to cool off in the Suwannee River near Chiefland, Fla. Phil Sandlin/AP hide caption

itoggle caption Phil Sandlin/AP