Alaska
Bursting ice dam in Alaska highlights risks of glacial flooding around the globe

Mark Sabbatini/AP
JUNEAU, Alaska (AP) — The gray, two-story home with white trim toppled and slid, crashing into the river below as rushing waters carried off a bobbing chunk of its roof. Next door, a condo building teetered on the edge of the bank, its foundation already having fallen away as erosion undercut it.
The destruction came over the weekend as a glacial dam burst in Alaska’s capital, swelling the levels of the Mendenhall River to an unprecedented degree. The bursting of such snow-and-ice dams is a phenomenon called a jökuhlaup, and while it’s relatively little-known in the U.S., researchers say such glacial floods could threaten about 15 million people around the world.
“We sat down there and were just watching it, and all of a sudden trees started to fall in,” Amanda Arra, whose house continued hanging precariously over the river bank Monday, told the Juneau Empire. “And that’s when I started to get concerned. Tree after tree after tree.”
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The flooding in Juneau came from a side basin of the awe-inspiring Mendenhall Glacier, which acts as a dam for the rain and melted snow that collect in the basin during the spring and summer. Eventually, the water gushed out from under the glacier and into Mendenhall Lake, from which it flowed down the Mendenhall River.
Water released from the basin has caused sporadic flooding since 2011. But typically, the water releases more slowly, over a number of days, said Eran Hood, a University of Alaska Southeast professor of environmental science.
Saturday’s event was astonishing because the water gushed so quickly, raising the river’s flows to about 1 1/2 times the highest previously recorded — so much that it washed away sensors that researchers had placed to study the glacial outburst phenomenon.
“The flows were just way beyond what anything in the river could withstand,” Hood said.
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Two homes were completely lost and a third partially so, Robert Barr, Juneau’s deputy city manager, said Monday. There were no reports of injuries or fatalities.
Eight buildings, including those that fell into the water, have been condemned, but some might be able to be salvaged by substantial repairs or bank stabilization, he said. Others suffered lesser damage.
While climate change is melting the Mendenhall and other glaciers around the world, its relationship to such floods is complicated, scientists say.
The basin where the rain and meltwater collect was formerly covered by the Suicide Glacier, which used to flow into the Mendenhall Glacier, contributing ice to it. But the Suicide Glacier has retreated as the climate warms, leaving a lake in the basin dammed by the Mendenhall.
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While that part can be linked to climate change, the unpredictable ways that those waters can burst through the ice dams and create floods downstream is not, they said.
“Climate change caused the phenomenon, but not the individual floods,” Hood said.
The variability in the timing and volume of such floods makes it hard to prepare for them, said Celeste Labedz, an environmental seismologist at the University of Calgary.
More than half of the people at risk from glacial outburst floods are in just four countries — India, Pakistan, Peru and China, according to a study published this year in Nature Communications.
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One of the more devastating such events killed up to 6,000 people in Peru in 1941. A 2020 glacial lake outburst flood in British Columbia, Canada, caused a surge of water about 330 feet (100 meters) high, but no one was hurt.
Because the ground along the Mendenhall River is largely made up of loose glacial deposits, it’s especially susceptible to erosion, Hood said. The damage could have been much worse if the flood coincided with heavy rains, he said.
Chris and Bob Winter built their house about 50 feet (15.2 meters) off the Mendenhall River in 1981. It flooded for the first time in 2014, an event that prompted them to raise their house 3 feet. It flooded again on Saturday with about 3 inches of standing water, enough to soak the carpets, subflooring and drywall.
“You just got to rip it all out,” Chris Winter said. “I just don’t know what’s going to happen, but we can’t live in our house right now.”
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She said her biggest concern is that they are both in their mid-70s and will probably have to move south at some point.
“We raised our family, and they’re gone and nobody’s in Juneau,” she said. “And I don’t know that we’ll be able to sell it.”
Thiessen reported from Anchorage. Associated Press writer Gene Johnson in Seattle and researcher Jennifer Farrar in New York contributed to this report.

Alaska
Alaska development agency may eye some exploration work next winter in Arctic refuge after ruling
A state development agency might consider doing some oil exploration work in the Arctic National Wildlife Refuge next winter, following a federal judge’s ruling Tuesday that the Biden administration lacked authority to cancel the agency’s oil and gas leases there, an agency official said.
The Alaska Industrial Development and Export Authority may not be able to pursue a full exploration program there next winter, with seismic surveys across the leases, agency executive director Randy Ruaro said in an interview Wednesday. But some seismic surveys — using seismic waves to map the subsurface — may be possible, he said.
That’s because the Biden administration threw up a major hurdle when it issued a decision in December that sharply limited exploration activity there, he said. That hurdle must still be removed, he said.
“They left part of ANWR open, even the Biden administration did, because they had to,” Ruaro said. “But quite a bit of it is zoned out.”
The agency is challenging the decision in court. It can also work with the Trump administration, which supports drilling in the refuge, to reverse Biden’s decision, he said.
“We’ve got a couple options,” Ruaro said.
But it’s unknown how long either option will take, he said.
The possibility of drilling in the refuge took a big step forward in 2017 when the Republican-led Congress passed a law opening the refuge to development.
The state agency acquired the seven leases, totaling 365,000 acres in the northwest corner of the refuge along the coast, in a lease sale held in the final days of the first Trump administration.
No major oil companies bid in that historic sale, and the state agency was the only bidder to hold on to its leases. But the Biden administration canceled the leases in 2023, citing legal flaws with the leasing program.
The 19.6-million-acre area for decades has been a battleground for pro-development advocates who say an oil discovery will help the economy and national security, and conservation and some Indigenous groups who fear it will threaten polar bears and caribou and add to climate pollution.
Judge Sharon Gleason, in her 22-page decision on Tuesday, said the cancellation violated the 2017 law calling for the refuge to be opened, because the Biden administration did not obtain a court order for the cancellation.
She sent the matter back to Interior, where the new Interior secretary, Doug Burgum, said last week that he plans to expand opportunities for oil and gas development in the 1.6-million-acre coastal plain of the refuge.
Alaska Gov. Mike Dunleavy and the Voice of the Arctic Iñupiat, representing elected Iñupiaq leadership from Alaska’s North Slope where the refuge is located, praised the decision.
So did Alaska’s U.S. senators, who helped write the provision in the 2017 law opening the refuge, and freshman Rep. Nick Begich III.
“After the first Trump administration developed a good program and AIDEA secured seven leases, the Biden administration spent four years attempting to turn the program on its head,” Sen. Lisa Murkowski said in a statement from the delegation Wednesday. “While we lost years of development to their willful intransigence, this decision is an important step to getting things back on track.”
Conservation groups and the Gwich’in Steering Committee criticized Gleason’s decision for allowing the agency to keep its leases. They said the state development agency has no ability to extract oil and gas, and has been has been the subject of reports showing it has made poor financial investments.
“AIDEA is the ‘grim reaper’ of Alaska megaprojects — when they show up to spend money, smart investors stay away,” said Andy Moderow, senior director of policy for the Alaska Wilderness League. “We will continue to challenge their misguided attempts to industrialize the Arctic Refuge, so that the Coastal Plain can sustain continued and new traditions for generations to come.”
‘Valuable deposits’
The refuge’s remote location in northeast Alaska, and the controversy over drilling there, has likely limited bidding interest from oil companies. The Biden administration held a second lease sale for the refuge early this year, but receive no bids of any sort.
Gleason’s decision suggested that the agency, which acquired its leases with the idea of working with exploration companies, could be sitting on sizable amounts of oil.
She said environmental reviews conducted under the first Trump administration and under Biden found that the coastal plain houses valuable deposits of oil and gas.
“Although these documents indicate that there are no proven plays, or groups of oil fields, due to the lack of oil and gas exploration in the Coastal Plain, they nonetheless confirm that the Coastal Plain contains valuable deposits according to the federal government’s best estimates,” Gleason wrote.
The U.S. Geological Survey in 1998 estimated that the refuge contains pools of oil that today would be comparable to large discoveries made in recent years in Alaska, far west of the refuge, such as at ConocoPhillips’ Willow field.
Ruaro said AIDEA has reviewed data from old wells drilled west of the refuge on state land. It’s also taken a new look at two-dimensional seismic surveys shot in the 1980s, when Congress allowed oil companies to drill the only well ever allowed in the refuge, he said.
“We think we have a very good idea of what’s in the northwest corner of ANWR, on our leases, and we think there are billions of barrels of oil,” Ruaro said.
The recent announcement of an oil discovery just west of the refuge also highlights the area’s oil potential, Ruaro said. The partners announcing the find included Australian-based Santos and Bill Armstrong, the geologist whose work led to major discoveries in Alaska and prompted ConocoPhillips to take steps that led the company to Willow.
“We think those trends continue into ANWR,” said Ruaro, referring to geological patterns that could support a discovery.
Next steps on possible exploration in the refuge will be considered by the agency’s board, he said. The agency will work with partners like the community of Kaktovik, an Alaska Native village in the refuge, along with the North Slope Borough and the Voice of the Arctic Iñupiat, he said.
“I would say that all options to advance the project and development are on the table, and we’ll get full guidance from our board,” Ruaro said.
The board will likely consider what it will take to soon acquire detailed, new seismic exploration data, known as three-dimensional seismic, which replaced the old 2D seismic technology, he said.
“3D is the goal,” he said.
Alaska
Alaska Airlines' new South Korea flights now on sale – The Points Guy

Alaska Airlines flyers will have a new way to get to Seoul, South Korea, this fall.
That’s when the Oneworld alliance carrier will launch its planned nonstop service between Seattle-Tacoma International Airport (SEA) and Seoul’s Incheon International Airport (ICN). Alaska will offer five weekly flights with a Hawaiian Airlines-operated Airbus A330-200 beginning Sept. 12.
The new route is part of a long-haul push by Alaska from its Seattle base. Daily flights to Tokyo’s Narita International Airport (NRT) begin May 12, and the airline promises to launch at least 12 long-haul destinations — including Seoul and Tokyo — from Seattle by 2030.
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Alaska plans to introduce one of the Boeing 787-9s that Hawaiian has on order on the new Seattle-Seoul route “soon.”
The push is enabled by Alaska’s merger with Hawaiian last year. While the two airlines continue to operate separately, Alaska plans to merge the latter into its own operations while keeping the Hawaiian brand for all flights that touch its namesake islands. Twin-aisle aircraft in Hawaiian’s fleet will continue to serve both U.S. and long-haul destinations from Hawaii — but they also enable new intercontinental nonstops from Seattle.
“The fundamentals to be successful in this industry are relevance and loyalty,” Ben Minicucci, CEO of Alaska Airlines, said at an investor event in December.
Acquiring Hawaiian, he and his leadership team said, gave Alaska both more network relevance along the West Coast, where Hawaii is one of the top vacation destinations. It also expanded its Alaska Airlines Mileage Plan loyalty program with the addition of HawaiianMiles members.
The new long-haul nonstops from Seattle are just another way that Alaska is trying to increase its relevance to customers.
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The airline is also expanding its bases at both Portland International Airport (PDX) in Oregon and San Diego International Airport (SAN) with more flights and routes. In May, Alaska will connect Portland with both Eugene Airport (EUG) in Oregon and Houston’s George Bush Intercontinental Airport (IAH), as well as San Diego with Rogue Valley International Medford Airport (MFR) in Oregon.
Alaska’s international ambitions are not without risks. It faces a very competitive market in Seattle with Seoul already served nonstop by Asiana Airlines, Delta Air Lines and Korean Air (Korean Air recently acquired Asiana). Tokyo is served by All Nippon Airways, Delta and Japan Airlines. Most other major international destinations have at least one nonstop flight.
In September, Alaska is offering fares to Seoul for as low as $773 or 47,500 Mileage Plan miles one-way for economy. A business-class seat can be snagged for 250,000 miles one-way.
Below are the details of Alaska’s new Seattle-Seoul nonstop:
- SEA-ICN: Departs at 3:25 p.m. and arrives at 6:50 p.m. the next day on Wednesdays, Thursdays, Fridays, Saturdays and Sundays
- ICN-SEA: Departs at 8:50 p.m. and arrives at 3 p.m. on Mondays, Thursdays, Fridays, Saturdays and Sundays
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Alaska
State lawmakers make push for Congress to remedy NOAA research station outages in Alaska
ANCHORAGE, Alaska (KTUU) – Alaskan senators are moving to pressure federal lawmakers to find a solution to reported outages of National Oceanic and Atmospheric Administration research stations in Alaska through a joint resolution that advanced from a Senate committee on Tuesday.
Earlier this month, senators heard public testimony on Senate Joint Resolution 12, which demands Congress to require that NOAA “ensure the reliability of National Data Buoy Center meteorological/ocean stations,” and take action order to “restore full functionality” of related equipment and the program as a whole.
The call for an assist from the federal government comes as state lawmakers express concerns over safety in Alaska – including for mariners and others in the state – with so many depending upon National Weather Service forecasting programs, including the buoy stations.
Sponsored by Sen. Forrest Dunbar, D-Anchorage, multiple iterations of SJR 12 have been proposed, with the resolution asking for specific attention to the subject of buoy research site outages from Alaska’s Congressional delegation, to include addressing the issue within the Commerce, Justice, Science, and Related Agencies Appropriations Act of 2025.
“These buoys provide precise, real-time information on a comprehensive set of weather conditions,” Dunbar explained at a prior hearing on the resolution. “Mariners, fishermen, and the Coast Guard rely on this information to assess ocean conditions.
“The problem is that, in the last five years, the weather buoys have been plagued with service outages,” he continued, adding that a buoy at NOAA Station 46061 – also known as Seal Rocks, in Prince William Sound – is of key importance, given its location between Montague and Hinchinbrook Islands and its role in the safe movement of oil tankers to and from Valdez. “The buoy was out of service all last winter, and the wave height instrument has been out of service all this winter, so the impact is, when the Seal Rocks buoy is out of service, the Coast Guard must rely on spot reports from passing ships, and data from more distant stations to estimate conditions in Hinchinbrook [Island] entrance. And these methods are not precise.”
The U.S. Coast Guard closes the Hinchinbrook Islands entrance, Dunbar explained, when weather conditions at Seal Rocks exceed a windspeed of 45 knots or seas of 15 feet.
“If a tanker lost power or maneuvering in conditions above these thresholds, rescuers would likely not be able to prevent it from grounding,” he added. “A tanker wreck would result in a severe oil spill devastating the local environment fisheries, and tourism.”
At the Senate Transportation Committee hearing Tuesday, Sen. Jesse Bjorkman, R-Nikiski, confirmed there were no testifiers in attendance in person or over the phone and closed testimony, moving the current version of SJR 12 – with individual recommendations and an attached fiscal note – out of committee. It is unclear when the bill might be taken up next.
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