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The LEO Network is a worldwide network of observers and experts that share their observations of environmental change.
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Observations

A moose on the loose: Combat shopping in an Anchorage Costco parking lot
A moose caused a stir in an Anchorage Costco parking lot, interacting with shoppers and snacking on the landscaping, reflecting increased human-moose encounters in the area.
Anchorage, Alaska, United States
Alaska Public Media

Melting permafrost changes Yukon River
Tanana, Alaska, United States
Alaska Public Media

Anchorage Sets New Temperature Record
The city of Anchorage can claim a new record. The city did not see a temperature drop below zero for the entire year of 2014. The last time Anchorage residents saw a below zero reading was December 26, 2013.
Anchorage, Alaska, United States
Alaska Public Media

Cougar spotted on Ingraham Trail on Sunday: GNWT
Cougar sightings are rare in the North Slave region, but not unheard of. The big cat was seen at 1 p.m. crossing the highway at kilometre 49, between the Cameron Falls trailhead and Reid Lake campground.
Yellowknife, Northwest Territories, Canada
NNSL Media

Tsunami warning canceled for swath of coastal Alaska after 7.8 earthquake prompts evacuations
People in Kodiak, Homer and Sand Point were among those who headed to higher ground after the quake prompted a tsunami warning from the Alaska Peninsula to the western Kenai Peninsula.
Chignik, Alaska, United States
Anchorage Daily News

Hunters stranded on sandbar after falling through Yukon River ice in Western Alaska
The cold and wet hunters built a fire to keep warm until Alaska Army National Guard rescuers arrived hours later.
Mountain Village, Alaska, United States
Anchorage Daily News

Anchorage hits an official 90 degrees for the first time on record
There’s little relief from the daytime heat in the forecast for the rest of the holiday weekend.
Anchorage, Alaska, United States
Anchorage Daily News

Weather strands travelers in small planes on glacier near Denali
Five people stayed overnight Friday on Ruth Glacier. On Saturday, guides led them to a shelter about 3.5 miles away, A historic storm dropped record amounts of snow throughout Interior Alaska during the last few days..
Ruth Glacier, Alaska, United States

Ketchikan evacuees can return home with potential for dam failure subsiding, officials say
Ketchikan officials say there’s “currently no danger of dam failure” but noted that a flood advisory is in place through Sunday.
Ketchikan, Alaska, United States

‘Some of them just disappeared’: Essential pieces of life in Nome were lost in the storm
Nome's landscape is physically altered, with raw material scattered wildly, the coastline reconfigured, and camps that anchored generations of subsistence either flattened or gone.
Nome, Alaska, United States
KTOO

Rock slides prompt intermittent closures of Seward Highway south of Anchorage
Rockfall along the Seward Highway near Beluga Point has been happening since wind and rain battered the area earlier this week.

Heavy rain causes flooding, mudslides in Juneau
Areas of the Southeast Alaska city “received between 3 and 7 inches of rain” in 24 hours over the weekend. The sodden ground caused mudslides in some areas, and wrecked roads and ditches around John Street and Peters Lane in Douglas.
Juneau, Alaska, United States

Man mauled by bear off Richardson Highway near Gulkana in Southcentral Alaska
The 61-year-old man was flown to an Anchorage hospital for treatment of his injuries, troopers said.
Gulkana, Alaska, United States

Skier dies in avalanche near Matanuska Glacier
Fairbanks resident Erin Lee, 40, was transported to Mat-Su Regional Hospital via helicopter where she was pronounced dead, according to the statement.
Matanuska Glacier

Tsunami warning canceled after 8.2 offshore earthquake sent people in many Alaska coastal communities to higher ground
The Tsunami Warning Center recorded waves of less than 1 foot above normal as a result of the earthquake.
Chignik, Alaska, United States

Just before Independence Day holiday, Anchorage beats heat record
Anchorage hit 80 degrees Tuesday night, beating a record set in 1979, according to the National Weather Service.

Roof of vacant, condemned Anchorage warehouse partially collapses under snow load
The warehouse at 4640 Gambell St. damaged Wednesday is owned by Marten Martensen, the primary owner of the Continental Auto Group in Anchorage. He was part of a group that purchased the property in October 2022 and briefly used it to store around 10,000 tires until last December’s successive snowstorms caused the structure to begin collapsing.

Tsunami warning issued following 7.4 magnitude earthquake off Alaska Peninsula
A tsunami warning was issued for areas along the Alaska Peninsula coastline following the 7.4 earthquake, which was centered 62 miles from Sand Point.
In this post, you can find links to the US Tsunami Warning Centers, as well as information on creating home emergency kits during COVID.
We hope everyone stays safe as this event unfolds, and welcome observations of conditions along the Alaska Peninsula.
Sand Point, Alaska, United States

Rapid release of water from glacier-dammed lake prompts Kenai flood advisory
The National Weather Service has issued a flood advisory for Kenai Lake and the Kenai River near Cooper Landing.
Cooper Landing, Alaska, United States

Body of Ambler snowmachiner recovered from Kobuk River
Alvin Williams was reported missing on May 2. His body was found Sunday, troopers said.
Ambler, Alaska, United States

For one Utqiaġvik family, spring bowhead whaling marks an important milestone
The article describes a Utqiagvik family's significant milestone in catching the first bowhead whale of the spring season, amidst challenges posed by climate change affecting sea ice stability.
Utqiaġvik, Alaska, United States
Kavitha George, Alaska Public Media - Anchorage

An angry moose and bare ground mark a brutal first quarter for Iditarod teams
Iditarod teams faced a challenging first quarter with bare ground damaging sleds and a dangerous encounter with an aggressive moose that injured a dog.
McGrath, Alaska, United States
Casey Grove, Alaska Public Media - Anchorage

Mat-Su schools closed Tuesday after blizzard hits power lines, highways
Mat-Su schools will be closed Tuesday due to a blizzard causing power outages and hazardous driving conditions.
Matanuska Valley, Alaska, United States
Chris Klint, Alaska Public Media - Anchorage

2 people survive late-season Southcentral Alaska avalanches
The slides come near the end of an avalanche season experts say is notable both for its heightened danger and lack of deaths.
Girdwood, Alaska, United States
Chris Klint, Alaska Public Media - Anchorage

Anchorage and Mat-Su schools closed after 3rd major snowstorm hits the region
Anchorage and Mat-Su Borough schools and state offices are closed Thursday as a third major winter storm this month coated the area with snow overnight Wednesday. “In the past 11 days, we’ve had 41.1 inches of snow which is a lot for Anchorage,” Baines said.
Chris Klint, Alaska Public Media - Anchorage

Mysterious glowing spiral in the sky over Alaska draws questions, and a simple explanation
Anchorage-based photographer saw something wild — a sudden, bright light on the northern horizon that quickly started to take on a spiral shape as it drew nearer. The spiral “appears to be rocket engine exhaust from a SpaceX Transporter-7 mission that launched on the Falcon 9 about three hours earlier in California.”
Alaska, United States

Utqiagvik reaches record high 40˚F in December
The lack of winter sea ice is keeping temperatures warm. Climatologist Rick Thoman says it's a "very clear climate change signal."
Utqiaġvik, Alaska, United States
Kavitha George, Alaska Public Media - Anchorage

With Anchorage schools remote again, another storm hitting Southcentral Alaska
With Anchorage schools remote again due to a 17-inch snowfall and strong winds, another storm is hitting Southcentral Alaska, potentially causing power outages as trees fall on electric lines.

Alaska fire season begins with almost two dozen human-caused blazes
Twenty-three of the 25 fires so far this year were ignited by human activity. While this year’s heavy snowpack and cold spring pushed back the start to fire season in many parts of the state, climate change is generally causing an earlier snowmelt, said climatologist Rick Thoman.
Alaska, United States
Kavitha George, Alaska Public Media - Anchorage

Half-mile stretch of Anchorage’s 15th Avenue closed due to sinkhole
A drainage culvert beneath the street failed, causing the sinkhole.
Jeremy Hsieh, Alaska Public Media - Anchorage

Monday storm again closes Anchorage, Mat-Su schools and state offices
A winter storm in Anchorage and Mat-Su, Alaska has caused closures of state offices, schools, and bus services, with reports of stranded vehicles and accidents, and up to a foot of snow expected in some areas.
Matanuska Valley, Alaska, United States

Kivalina neighbors banded together to save a house from falling into the sea amid last week’s storm
Kivalina has long dealt with climate change-driven erosion. While the village didn’t feel the effects of heavy flooding, residents are wary of a future with heavy autumn storms.
Kivalina, Alaska, United States

Anchorage sets new record for amount of snow on the ground in April
Snow dumped on Southcentral Alaska this weekend, with more than 8 inches falling in the Anchorage area and about 5 inches in the Matanuska-Susitna Borough. A Climatologist says this weekend has led to a record amount of snowpack this late in the season.
Wesley Early, Alaska Public Media - Anchorage

2 found dead after residential fires in Mat-Su
Two individuals died in separate fires in Mat-Su, with one victim found outside his home after escaping the blaze, potentially succumbing to extreme cold.
Palmer, Alaska, United States

Cold, wet weather delays lucrative peony harvest in Southcentral Alaska
Alaska is one of the only places in the world where peony flowers grow in the summer months. But the unusually cold, wet weather this year is delaying the blooms by weeks.
Willow, Alaska, United States
Tim Rockey, Alaska Public Media - Anchorage

Ask a Climatologist: Snow melt around the state is right on schedule
An early melt-out date can make for an especially bad wildfire season, but this year, it’s right on schedule for much of the state. Listen now
Annie Feidt, Alaska's Energy Desk - Anchorage

Anchorage digs out of more than a foot of wet, heavy snow
All schools in Anchorage and the Mat-Su Borough are closed Wednesday due to slick roads across the region, as snowfall continues. “This is the heaviest snowfall the Anchorage area has seen in over 20 years,” said state Department of Transportation spokesman Justin Shelby. “Our crews are keeping up as best they can.”

State report details potential health impacts of climate change
How will climate change affect health in Alaska? Dangerous travel conditions could cause more accidents, warmer temperatures could spread new diseases and the topsy-turvy weather could worsen mental health. Those are some conclusions from a new state report released Monday. Listen now
Newtok, Alaska, United States
Rachel Waldholz, Alaska's Energy Desk - Anchorage

In Newtok, residents worry the encroaching river will destroy a way of life
When the river takes the first houses, the village could start to scatter. And Newtok’s blend of the modern and traditional could erode away with the land.
Newtok, Alaska, United States
Rachel Waldholz, Alaska's Energy Desk - Anchorage

Warm early winter topples century-old records
For the first time in more than a century with no recorded snow -- not even a trace -- this late in October, as of Tuesday the 16th. On top of that, warm weather across the state is setting marks for the latest freeze date on record.
Fairbanks, Alaska, United States
Casey Grove, Alaska Public Media - Anchorage

Kenai Peninsula man is the first person to die of Alaskapox virus
An immunocompromised man from Kenai Peninsula is the first known fatality from the Alaskapox virus, a rare zoonotic disease primarily transmitted through animal contact.
Kenai, Alaska, United States
Rachel Cassandra, Alaska Public Media - Anchorage

2 Anchorage commercial roof collapses reported in 2 days
Both buildings were occupied during the collapses but everyone got out safely and no injuries were reported, according to Anchorage Fire Department spokeswoman Lexi Trainer.

Anchorage Spenard Builders Supply facility suffers major snow-related roof collapse
The Spenard Builders Supply facility in Anchorage suffered a significant roof collapse due to heavy snow, causing no injuries but damaging the structure and nearby utilities.

Southcentral Alaska cold snap and surging natural gas demand put supply in question
A cold snap in Southcentral Alaska has led to increased natural gas demand, causing Enstar to struggle with supply due to equipment failure and technical issues.
Casey Grove, Alaska Public Media - Anchorage

Southcentral Alaska schools closed amid snowstorm, power outages
Schools in Southcentral Alaska are closed due to a snowstorm and power outages, with the Seward Highway being deemed "impassable" and numerous vehicles stranded.

Haze from Canada wildfires coming to Southcentral Alaska this week
The smoke is from numerous wildfires burning in Canada’s Yukon Territory.

Cleanup indicates Valdez spill bigger than initially thought
According to Alyeska Pipeline Service Company, approximately 400 gallons of an oily water mix had been recovered from the Port of Valdez as of Saturday night.
Valdez, Alaska, United States
Elizabeth Harball, Alaska's Energy Desk - Anchorage

Iditarod mushers cope with warm temperatures as they arrive at Alaska Range
Mushers shrugged off jackets and dogs sunbathed in the snow as temperatures hovered around 40 degrees — hot by Alaska winter standards.
Rainy Pass, Alaska
Lex Treinen, Alaska Public Media - Anchorage

Alaska’s first monkeypox case recorded in Anchorage
Anchorage Health Department officials say the person who tested positive is an Anchorage resident and is isolating at home. Officials say the person did not require hospitalization, and was a close contact of a person who recently traveled out of state.
Wesley Early, Alaska Public Media - Anchorage

Ask a Climatologist: Why do some lakes freeze faster than others?
One important factor is the depth of the lake. But there are other variables too.
Annie Feidt, Alaska's Energy Desk - Anchorage

Video: The oceans are changing. Can crabs adapt?
Ocean acidification threatens some of Alaska’s most lucrative crab fisheries. But there’s one ray of hope: it’s possible that crabs might be able to adapt to the changing oceans. The big question scientists are researching at Bob Foy’s lab in Kodiak is – will they have enough time?
Shelikof Strait, Alaska, United States
Eric Keto, Alaska's Energy Desk - Anchorage

Flooding closes schools and shuts down sewer system in Glennallen as high waters continue to inundate Alaska communities
Officials say the floodwaters are swamping Alaska towns, tearing buildings from foundations, seeping into homes and covering roads. In Glennallen, the local utility is setting up Porta-Potties around the community, and area residents are asked to limit water usage. The state transportation department said there was water over a portion of the Glenn Highway on Monday, but the road remained open.
Glennallen, Alaska, United States
Dan Bross, KUAC - Fairbanks and Chris Klint, Alaska Public Media - Anchorage

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