LifeAlaska · September 2, 2026
a lake can vanish in hours
An Alaska lake that took a thousand years to form can now drain completely in a few hours, a sign the ground gave out.
Daily Alaska staff · September 2, 2026
Alaska sits largely on permafrost, soil that stays below freezing for at least two consecutive years and is often packed with ice, according to a report from Alaska Beacon. When that ice thaws, the ground subsides and takes whatever was built on it down too, including houses, roads and pipes. An international team working through the Permafrost Discovery Gateway now uses artificial intelligence on satellite imagery to track that process in near-real time.
The subsidence fills with water and forms ponds scientists call thermokarst or trough ponds, and roughly 70 million of them dot the Alaska tundra. Sometimes the same thaw cuts a drainage channel, and a lake that took a thousand years to form can empty out in a few hours. That sudden drainage is a strong signal the ice-rich permafrost underneath has thawed.
The Permafrost Discovery Gateway team is now monitoring more than 4 million lakes across the Arctic. In June and July 2026 alone, the team found about 30 more lakes drained in northwest Alaska, on the Seward and Baldwin peninsulas, after a winter that actually ran cold for the state. In summer 2018, nearly 200 of the region's roughly 4,600 lakes lost more than a quarter of their area.
For anyone building in the region, the resulting maps show which ground is loaded with ice and a poor bet for construction, and which ground is more likely to hold a structure. The tracker is public at the Permafrost Discovery Gateway on arcticdata.io.
In this story
Questions people ask
where in alaska are lakes draining from permafrost thaw
Northwest Alaska, on the Seward and Baldwin peninsulas. About 30 lakes drained there in June and July 2026.
how many arctic lakes are being monitored right now
An international team through the Permafrost Discovery Gateway monitors more than 4 million lakes across the Arctic in near-real time using AI to analyze satellite imagery.
how fast can a lake drain when permafrost thaws
A lake that took a thousand years to form can empty completely in just a few hours if thaw cuts a drainage channel through the ground.
why does permafrost lake drainage matter for building houses
The tracking maps show which ground is ice-rich and risky to build on, and which is more stable, which matters for any construction plan.
Evidence
Sources
Claims and where they come from
- An international team using the Permafrost Discovery Gateway now monitors more than 4 million lakes across the Arctic in near-real time. · alaskabeacon.com
- In June and July 2026, the team found about 30 more lakes affected by drainage in northwest Alaska. · alaskabeacon.com
- In summer 2018, nearly 200 of roughly 4,600 lakes in the Seward and Baldwin peninsulas region lost more than a quarter of their area. · alaskabeacon.com
- Roughly 70 million thermokarst ponds dot the Alaska tundra. · alaskabeacon.com
Produced with AI assistance, narrated with Slav Lund's voice clone with his consent, and reviewed by a person before publishing. How we use AI →