BBC News
Some Alaskans evacuated their homes like escape to melt a basin beaten by Mendenhall glacier – increasing fear of the flooding capital city.
The National Weather Office (NWS) in Juneou issued a flood warning as the Glacial Outbolt Water Flow to the Mendenhall River.
For many days, local officials warned residents that they could be forced to evacuate. On Tuesday, they started the water that began to escape the ice on the dam and flooding the expectations in the coming days.
The glacier, a popular tourist attraction, 12 miles (19km) from Juneau.
The water level reaches 9.85ft (3m) on Tuesday, at the low levels of floods starting with 14ft, nws said. But on Wednesday morning they were above 16ft, considered as a crest.
“This is a new record, based on all information we have,” Nicole Ferrin, a time service meteorologist during a press conference on Tuesday.
USGS / ReutersThe City Wity website explains that the glacial lake exgebursts occurred when a lake of melting snow and ice and rain rapidly. It compares the process of pulling a plug from a whole bathtub. If the mertwater reaches a level, they can overcome a glacier that previously prevents them.
Alaska Governor Mike Dunlevy issued a state driving disaster on Sunday because of the “imminent threat of flooding in the glacier lake out) in place.
Flooding is an annual concern in the area since 2011, as homes damaged and disappeared by the Dids. Last year, hundreds of habits were damaged.
The mountain glaciers shrink around the world as the temperature rises.
Further water to melt can be collected to form glacial lakes. Scientists have observed an increasing number and size of lakes Globally since 1990.
The natural ice and stone dams that inhibit the lakes in the area can fail suddenly and unpredictable, prompting flooding.
Researchers expect climate change to increase these numbers of floods in the future, even though the past trends – and the reasons for individual floods – complex.


