

Air Force officers leave as Air Force One prepares to take-off during a rainstorm at Andrews Air Force Base, Md., on Jan. 17 as President Barack Obama travels to Massachusetts to campaign for Senate Democratic candidate and Massachusetts Attorney General Martha Coakley. Cliff Owen/AP
Hoarfrost covers a pine tree on Tuesday in Winona, Minn. Hoarfrost is a deposit of interlocking ice crystals on small-diameter objects, according to the National Weather Service. It is similar to dew, except the temperature of the object that accumulates the frost must be below freezing. Melissa Carlo/Winona Daily News/AP
An Orthodox priest conducts a service outside in Vyshgorod, Ukraine, on Jan. 19. Orthodox worshipers mark Epiphany by immersing themselves in icy waters regardless of the weather. Gleb Garanich/Reuters
JetBlue workers help passengers across Douglas Drive at the airport in Long Beach, Calif., on Wednesday as storms continued to pummel the region. Jeff Gritchen/Long Beach Press-Telegram/AP
A hippopotamus named Nikica is seen in her enclosure at a private zoo in the Plavnica Hotel complex in Podgorica, Montenegro, on Wednesday. The two-ton hippo escaped nine days ago from the zoo and returned home without hurting anyone. Flooding in the area allowed the animal to swim over the cage surrounding her pen. Stevo Vasiljevic/Reuters
Storm clouds are seen over the Von Braun Research Hall at the University of Alabama in Huntsville, Ala., on Thursday. A tornado struck the north Alabama city on Thursday evening, bringing down trees and leaving up to 10,000 people without power. Eric Schultz/The Huntsville Times/AP
A Russian Orthodox believer gets out of the icy waters during a ceremony to mark Epiphany on Jan. 19 in Suzdal, Russia. The temperature was -11.2 degrees Fahrenheit. Denis Sinyakov/Reuters
Heavy rainfall floods the ninth fairway on Thursday at La Quinta Country Club in La Quinta, Calif. Rain delayed the second round of the Bob Hope Classic PGA Golf Tournament. Matt York/AP
Cambodian Buddhist monks walk through the rain in Phnom Penh, Cambodia, on Jan. 20. Heng Sinith/AP
An Indian wedding performer rides his horse on his way home in the middle of dense fog in New Delhi, India, on Jan. 20. Unseasonably cold weather and heavy fog in recent days have caused minor disruptions to traffic in the Indian capital. Kevin Frayer/AP
A person photographs the Belle Isle Ice Tree in Belle Isle in Detroit, Mich., on Wednesday. The sculpture is created using several discarded trees placed together with a pipe running up the center to a spout that is constantly spraying water. The spray, couple with cold weather, adds layers upon layers of ice to the sculpture. Carlos Osorio/AP
The surf cuts into the cliff below homes in Solana Beach, Calif. Lenny Ignelzi/AP
A fisherman pushes ice away from his boat in Dalian, China, on Jan. 18. Freezing temperatures have paralyzed fishing harbors and high winds have stranded travelers in northern China as a cold front followed record-breaking blizzards this week. AP
A large tree lies in the yard of a Ventura, Calif. home on Thursday after falling during a powerful storm. Eric Parsons/AP
Eight-year-old Nathan Wright stands in cold rain water in the flooded yard at his elementary school in Palo Alto, Calif., on Thursday. Paul Sakuma/AP
Northern Arizona University students in Flagstaff, Ariz., dig a car out of the snow on Thusrday. Heavy storms continue to blanket the area and caused the closure of all of the schools in the Flagstaff area through the end of the week. Michael Chow/The Arizona Republic/AP
Paramilitary policemen shovel snow to help a trapped truck on a road in Ulanqab, China, on Jan. 22. AP
An illuminated set of Olympic rings is refracted by the raindrops on a window as rain falls in Richmond, British Columbia, on Jan. 17. Darryl Dyck/The Canadian Press/AP