Alaska Climate Research Center
August 21, 2025: The Arctic sea ice has experienced a lesser decrease rate for this week of 6.37% (last week’s decrease rate was 7.25%), from the level on 08/14/2025 of 5.434 M km2 to 5.088 M km2 for this week. The sea ice extent for 2025 to date has slipped to 8th place for the lowest sea ice extent for this time of […]
Arctic Sea Ice Extent: August 21, 2025 Read More »
This year’s glacial lake outburst flood originating from the glacier damned lake in Suicide Basin occurred on August 13. The water level of the Mendenhall River at Auke Bay reached 16.65 feet, a new record that tops even the previous records set in 2023 and 2024. The water level of the crest was predicted almost
2025 Mendenhall GLOF Read More »
August 14, 2025: The Arctic sea ice has experienced a greater decrease rate for this week of 7.25% (last week’s decrease rate was 5.64%), from the level on 08/07/2025 of 5.859 M km2 to 5.434 M km2 for this week. The sea ice extent for 2025 to date has slipped to 4th place for the lowest sea ice extent for this time of year
Arctic Sea Ice Extent: August 14, 2025 Read More »
Suicide Basin has begun draining and the annual glacial lake outburst flood (GLOF) has started. The water level in the lake (see graph on the right) is dropping while the river level downstream is rising. Residents of the 17ft lake level inundation zone are being advised to evacuate. See the Juneau Borough evacuation notice and Juneauflood.com for maps
Mendenhall GLOF has started Read More »
August 7, 2025: The Arctic sea ice has experienced a much lesser decrease rate for this week of 5.64% (last week’s decrease rate was 13.73%), from the level on 07/31/2025 of 6.209 M km2 to 5.859 M km2 for this week. The sea ice extent for 2025 to date remains in 2nd place for the lowest sea ice extent for this time of year
Arctic Sea Ice Extent: August 7, 2025 Read More »
July 31, 2025: The Arctic sea ice has experienced a much greater decrease rate for this week of 13.73% (last week’s decrease rate for 8 days was 9.07%), from the level on 07/24/2025 of 7.197 M km2 to 6.209 M km2 for this week. The sea ice extent for 2025 is now the 2nd lowest sea ice extent on record for this time of
Arctic Sea Ice Extent: July 31, 2025 Read More »
July 24, 2025: The Arctic sea ice has experienced a greater decrease rate for this week (of 8 days) of 9.07% (last week’s decrease rate for 8 days was 4.52%), from the level on 07/16/2025 of 7.915 M km2 to 7.197 M km2 for this week. The negative sea ice anomaly this week was greater than the anomaly of -0.8188 M km2 on 07/16/2025 to
Arctic Sea Ice Extent: July 24, 2025 Read More »
July 16, 2025: The Arctic sea ice has experienced a lower decrease rate for this week (6 days – we are still missing a day due to slow updates) of 4.52% (last week’s decrease rate for 8 days was 7.69%), from the level on 07/10/2025 of 8.290 M km2 to 7.915 M km2 for this week. The sea ice extent for 2025 to
Arctic Sea Ice Extent: July 16, 2025 Read More »
July 10, 2025: The Arctic sea ice has experienced a slightly greater decrease for this week (of 8 days) of 7.69% (last week’s decrease rate for 6 days was 7.34%), from the level on 07/02/2025 of 8.981 M km2 to 8.290 M km2 for this week. The sea ice extent for 2025 to date is in third place for the lowest sea ice
Arctic Sea Ice Extent: July 10, 2025 Read More »
July 2, 2025: The Arctic sea ice has experienced a greater decrease for this week (of only 6 days) of 7.34% (last week’s decrease rate was 5.15%), from the level on 06/26/2025 of 9.692 M km2 to 8.981 M km2 for this week. The sea ice extent for 2025 to date is just barely edged out of first place for the lowest sea
Arctic Sea Ice Extent: July 2, 2025 Read More »