Alaska tries to dig out of massive snowfalls

Jan. 10, 2012: In this photo provided by the University of Alaska in Fairbanks, an Aeryon Scout unmanned aerial vehicle hovers at the Nome causeway in Nome, Alaska. Researchers were using the 2.5-pound camera-equipped drone to provide a large picture of the ice in hopes of guiding a Nome-bound Russian fuel tanker as close to shore as possible. (AP/UAF Geophysical Institute )

Jan. 10, 2012: In this image provided by the U.S. Coast Guard Greg Walker, with the University of Alaska in Fairbanks, prepares an unmanned drone at the Nome causeway. (AP/U.S. Coast Guard )

Jan. 6: The Coast Guard Cutter Healy crew breaks ice in the Bering Sea as the Russian-flagged tanker Renda, approximately 19 miles northwest of Nunivak Island, makes their way to Nome to deliver more than 1.3 million gallons of fuel to the city. (AP Photo/US Coast Guard )

Jan. 6: The Russian-flagged tanker Renda, carrying more than 1.3 million gallons of fuel, sits in the ice while the Coast Guard Cutter Healy crew breaks the ice around the tanker approximately 19 miles northwest of Nunivak Island. (AP Photo/US Coast Guard )

Jan. 10: The Coast Guard Cutter Healy, right, approaches the Russian-flagged tanker Renda while breaking ice around the vessel 97 miles south of Nome. (AP Photo/U.S. Coast Guard)

Jan. 7: A man stands on a house buried in snow in the fishing town of Cordova, Alaska. Residents have turned to the state to help them dig out of massive snow levels that have collapsed roofs, triggered avalanches and even covered doors, trapping some people in their homes. (AP Photo/Alaska Division of Homeland Security and Emergency Management)

Jan. 7: Vehicles move down snow-covered streets in the fishing town of Cordova, Alaska. (AP Photo/Alaska Division of Homeland Security and Emergency Management)

Jan. 7: A house is buried in snow in the fishing town of Cordova, Alaska. (AP Photo/Alaska Division of Homeland Security and Emergency Management)

Jan. 8: Snow covers the harbor in the fishing town of Cordova, Alaska. Dozens of National Guard troops are helping Cordova dig out from massive snows that have collapsed roofs, trapped some people in homes and triggered avalanches. (AP Photo/Alaska Division of Homeland Security and Emergency Management)

Jan. 8: Snow envelops the high school in the fishing town of Cordova. (AP Photo/Alaska Division of Homeland Security and Emergency Management)

Jan. 8: Guard members help dig out the fishing town of Cordova, Alaska. (AP Photo/Alaska National Guard)

Jan. 9, 2012: In this photo provided by the Alaska National Guard, a Guardsman clears a walkway of snow in Cordova, Alaska. (AP/Alaska National Guard )

Jan. 11, 2012: In this photo provided by the U.S. Coast Guard, a planned fuel transfer safety zone is identified by stakes in the Nome Harbor. The planned safety zone will be in place throughout the Russian tanker Rendas fuel transfer evolution. (AP/U.S. Coast Guard )