Key Alaska rivers that are usually frozen at this time of year are now free-flowing, with record-early thaws following record-high winter and spring temperatures.
Alaska residents accustomed to subzero temperatures are experiencing a heatwave of sorts that is shattering records, with the thermometer jumping to more than 30 degrees Fahrenheit above normal in some regions.
Anchorage, Alaska's largest city, recorded a 90 degrees Fahrenheit (32 centigrade) as heat takes over the US state.
Interest in the world’s most famous sled dog race has waned in recent years, in part because of smaller cash prizes that make it difficult for mushers to compete in an expensive sport.
The avalanche occurred when heavy winds caused a slab of 2 to 3 feet (61 to 91 centimeters) to become unstable and fall in the short but steep terrain, said Wendy Wagner, director of the avalanche information center.
A powerful 7.8 earthquake struck the Alaska Peninsula late on Tuesday, triggering a tsunami warning that sent residents fleeing to higher ground before it was called off without any damaging waves.