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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

Significant landslide detected in Denali National Park after project to detect landslides expands to that area
A seismic landslide-detection system flagged a significant slide near Avalanche Spire Peak in Denali National Park, estimated at 4–6 million cubic meters. No eyewitness reports have been confirmed as the system, recently expanded to Denali, remains in test phase.
Denali National Park, Alaska, United States
Alaska’s News Source (KTUU)

Denali Borough: Multiple homes burned in Bear Creek Fire
Multiple primary residences have burned in the Bear Creek Fire in Denali Borough, Alaska, as officials work to identify impacted homes.
Denali Borough, Alaska, United States
Alaska's News Source

Interior wildfires: Bear Creek Fire disables cell tower as ash falls in Healy, Ferry
The Bear Creek Fire in Interior Alaska has grown to over 26,000 acres, disabled a cell tower in Denali Borough, and sent ash drifting over Healy and Ferry, prompting expanded evacuation alerts and disrupting communications.
Healy, Denali Borough, Alaska, United States
Fairbanks Daily News-Miner

Avalanche closes Parks Highway near Denali National Park
An avalanche has closed mile 219 of the Parks Highway near Denali National Park, impacting 400 feet of the road and halting traffic, with high avalanche danger expected to persist due to strong winds and rising snow levels.
Denali National Park, Alaska, United States
Alaska's News Source

Tree Rotten or Infested?
A close look at this fallen spruce tree raises questions underlying causes and tree health.
College, Alaska, United States

Tustumena Lake fire reported 25% contained
The Tustumena Lake fire in Alaska is 25% contained, with efforts including smokejumpers and over 56,000 gallons of water deployed to combat the 35-acre blaze.
Tustumena Lake, Alaska, United States
Homer News

Denali National Park bars visitors as wildfire burns near entrance
Denali National Park has closed to visitors due to the rapidly spreading Riley Fire near its entrance, prompting evacuations and a significant firefighting response.
Denali National Park, Alaska, United States
Alaska Public Media

Ice jam floods continue to plague Alaska river communities
In the Glenallen area, Yukon and Kuskokwim River communities, and Northwest Arctic floodwaters caused by snow melt and rapid warming have caused many communities to be flooded.
Alaska, United States
Alaska Public Media

Mosquitoes are unusually dense and vicious all of a sudden
Our Mosquito Magnet trap filled in under a week. We normally empty it once a month or so.
Ester, Alaska, United States

Flooding in Manley Hot Springs recedes, but residents remain displaced and without power
The second-worst flood on record in the Interior Alaska community of Manley Hot Springs began to recede on Sunday, but dozens of residents were displaced and cut off from power. Flooding is also reported in Sleetmute, Red Devil and Georgetown on the Kuskokwim River and Circle on the Yukon River.
Manley Hot Springs, Alaska, United States
Anchorage Daily News

Late-blooming Rose (Rosa acicularis) in Fairbanks
Wild roses typically bloom in June and July, and go dormant when temperatures drop in the fall and winter.
Fairbanks, Alaska, United States

Lots of Late Blooming Roses (Rosa acicularis)
Wild roses usually bloom in May and June, but warm fall temperatures may have signaled roses in Fairbanks to bloom later than usual.
Ester, Alaska, United States

Why are spruce trees turning orange in the Alaska Range?
The answer to the Tang-colored mystery involves tiny spruce needle rust fungus spores that also rely on Labrador tea plants to survive.
Healy, Alaska, United States
Anchorage Daily News

Early Ripe Blueberries
Moose Mountain, Fairbanks, AK

Multi-headed Fireweed (Chamerion angustifolium)
Browsing moose may have damaged the primary flowering shoot of the fireweed, causing it to form multiple blooming stalks.
Ester, Alaska, United States

Wasp Gall on Rosebush
Small spiny growths on a rosebush resemble spiny galls created by cynipid wasps.

Blueberries in June
Manley hotspring road

‘Zombie fires’ are erupting in Siberia and Alaska, signaling a severe northern wildfire season may lie ahead
The wildfires can burrow into rich organic material, such as the vast peatlands that ring the Arctic, and smolder under the snowpack throughout the frigid winter.
Alaska, United States
Anchorage Daily News

Flood potential for spring breakup expected to be above normal for much of Alaska
The River Forecast Center released their spring breakup forecast for 2020. Flood potential is expected to be above average for areas south of the Brooks Range. Areas of north of the Brooks Range should see a normal flood potential.
Alaska, United States
KTUU

Minus 65: Interior Alaska sees coldest official temperatures since 2012
An official temperature of minus 65 was recorded 15 miles northeast of Manley Hot Springs, according to the National Weather Service. It is the coldest official temperature in Alaska since
Manley Hot Springs, Alaska, United States
Fairbanks Daily News-Miner

Residents near Shovel Creek fire asked to prepare for possible evacuation
As of Monday morning, the fire 3 miles north of Murphy Dome was estimated at 650 acres. About 146 personnel working to contain the fire, which was started by lightning on Friday.
Fairbanks Daily News-Miner

An unstoppable force: The Pretty Rocks Landslide
There are over one hundred and forty landslides along the Denali Park road, the 92 mile road through Denali National Park and Preserve. None are more threatening than the Pretty Rocks Landslide at Polychrome Pass.
Cantwell, Alaska, United States
YouTube

Disappearance of Tundra Ponds
Kettle ponds in Denali National Park contain less water this spring than in previous years, due to low snowfall and permafrost thaw. Shrubs are replacing grasses as the lakes dry.
McKinley Park, Alaska, United States
Scott Richardson, Katie Spellman, Richard L Thoman Jr

Nenana Ice Classic tripod falls; earliest date on record
In the earliest breakup since the contest began in 1917, the Nenana Ice Classic Tripod fell early this morning.
Nenana, Alaska, United States

103rd Ice Classic: warm weather, thin ice are hot topics in Nenana
NENANA — Early warm spring weather is adding a lot of excitement to the Nenana Ice Classic this year, resulting in a surge of last-minute ticket sales.
Nenana, Alaska, United States

Prickly Rose (Rosa acicularis) in Bloom WAY Out of Season
Prickly rose plant is blooming when others have gone to hips.
Fairbanks, Alaska, United States

Rare Wood Frog (Lithobates sylvaticus) Sighting
Wood frog sighted on trail.

Peregrine Falcon (Falco peregrinus) in January!!?
Peregrine falcon observed in interior Alaska in early January.
Nenana, Alaska, United States

Arctic on Fire | World Policy Institute
On June 19, 2015, a slow-moving low-pressure system with spectacular thunderstorms that produced little rain began making its way through Alaska. By the time the storms finally petered out about a week later, 61,000 bolts of lightning had been unleashed on a boreal forest in the state. No one had ever seen anything quite like it, not even in 2004, when 8,500 lightning strikes were recorded in a single day.
Interior Alaska, United States
World Policy Blog

Tularemia reported around Fairbanks, Palmer; vets urge quick diagnosis, treatment for pets
The state Department of Fish and Game is warning pet owners in the Interior and Southcentral Alaska about a recent spike in reports of tularemia – sometimes called “rabbit fever.”
Interior - Southcentral, Alaska, United States
Alaska Public Media

Thousands lose power as windstorm roars through Interior Alaska
FAIRBANKS - A windstorm knocked out power to thousands of people from North Pole to Nenana on Sunday, according to the Golden Valley Electric Association.

Lots of Wood Frogs (Lithobates sylvaticus)
Spotted half a dozen wood frogs crossing Roland Road, Fairbanks. Those that were run over by cars were females loaded with eggs.
Fairbanks, Alaska, United States

Moose (Alces alces) Eating Rose Hips (Rosa aciculariso or R. nutkana)
Young moose eating rose hips.

Coyotes are everywhere, even in Alaska
Department biologists do not keep track of coyote numbers, but Fairbanks-area trapper Randy Zarnke said coyotes began showing up on his trapline trails three or four years ago.
College, Alaska, United States

Lots of Mosquitoes (Culicidae)
Mosquito populations are way up in Southcentral Alaska this year. Extremely high numbers are also reported from interior Alaska.
Interior of Alaska, United States

A creeping mass of insect larvae near a Denali lodge raises the question: ‘Am I hallucinating?’
A worker in Kantishna glimpsed the rare phenomenon in which hundreds of Alaska gnat snakeworm larvae formed a crawling column.
Healy, Alaska, United States

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