HOUSTON, United States The US state of Alaska is bracing for potential record glacier-related flooding, and residents of the capital Juneau are on notice to evacuate, according to Wednesday media reports. Emergency officials warned that massive floodwaters could deluge sections of Juneau from the culmination of snowmelt and rainwater flowing downstream from a basin dammed by the Mendenhall Glacier about 12 miles (19.3 kilometers) away. Some of the city's 30,000 residents who live in the flood-