Rooftops give way as heavy snow blankets US Northwest

Unusually prolonged wintry weather has caused numerous roof
collapses around the US West under the weight of accumulating snow
and ice, including at a Colorado ski resort, a major athletics
facility in Alaska and many buildings and homes in Idaho and
Oregon.
Governors in both the latter states have declared disasters
because of a week of cold, snowy weather.
In Alaska, the dome covering a 180,000 square-foot (16,722
square metres) athletic facility in Anchorage dropped to the ground
as snow...