Alaska Climate Research Center

The Alaska State Climate Center
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Arctic Sea Ice Extent: June 13, 2024

June 13, 2024:  The Arctic sea ice has continued to decrease this week at a lesser rate of 4.30% (as opposed to last week’s decrease rate of 5.12%), from the level on 06/06/2024 of 11.478 M km2 to 10.985 M km2 for this week. The  negative sea ice anomaly this week was higher than the anomaly of -0.442 M km2 on 06/06/2024 to a […]

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Arctic Sea Ice Extent: June 6, 2024

June 6, 2024:  The Arctic sea ice has continued to decrease this week at a greater (double) rate of 5.12% (as opposed to last week’s decrease rate of 2.53%), from the level on 05/30/2024 of 12.097 M km2 to 11.478 M km2 for this week. The  negative sea ice anomaly this week was higher than the anomaly of -0.163 M km2 on 05/30/2024 to

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Arctic Sea Ice Extent: May 31, 2024

May 31, 2024:  The  sea ice has continued to decrease this week at a lower rate of 2.53% (as opposed to last week’s decrease rate of 3.21%), from the level on 05/23/2024 of 12.411 M km2 to 12.097 M km2 for this week. The negative sea ice anomaly this week was lower than the anomaly of -0.173 M km2 on 05/23/2024 to a lesser

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Arctic Sea Ice Extent: May 23, 2024

May 23, 2024:  The  sea ice has continued to decrease this week at a higher rate of 3.21% (as opposed to last week’s decrease rate of 2.72%), from the level on 05/16/2024 of 12.822 M km2 to 12.411 M km2 for this week. The negative sea ice anomaly this week was higher than the anomaly of -0.0965 M km2 on 05/16/2024 to a greater

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Arctic Sea Ice Extent: May 16, 2024

May 16, 2024:  The  sea ice has continued to decrease this week at a higher rate of 2.72% (as opposed to last week’s decrease rate of 1.44%), from the level on 05/09/2024 of 13.181 M km2 to 12.822 M km2 for this week. The negative sea ice anomaly this week was higher than the anomaly of -0.0882 M km2 on 05/09/2024 to a greater

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Arctic Sea Ice Extent: May 9, 2024

May 9, 2024:  The  sea ice has continued to decrease this week at a lower rate of 1.44% (as opposed to last week’s decrease rate of 3.15%), from the level on 05/02/2024 of 13.374 M km2 to 13.181 M km2 for this week. The negative sea ice anomaly this week was lower than the anomaly of -0.251 M km2 on 05/02/2024 to a lesser

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Arctic Sea Ice Extent: May 2, 2024

May 2, 2024:  The  sea ice has continued to decrease this week at a higher rate of 3.15% (as opposed to last week’s decrease rate of 1.95%), from the level on 04/25/2024 of 13.809 M km2 to 13.374 M km2 for this week. The negative sea ice anomaly this week was greater than the anomaly of -0.156 M km2 on 04/24/2024 to a greater

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End of snow season 2023/24

Spring has sprung in Alaska and the seasonal snow pack is declining rapidly or already gone in most of the state. The time lapse below shows the view from the ACRC webcam looking south towards the Alaska Range. The animation loops through one image a day from April 15 to April 30 for 2024 (top)

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Break up on the Tanana

The tripod on the Tanana river at Nenana fell over on April 27, 2024, at 05:18 am, triggering the clock that ends this year’s Nenana Ice Classic. The long standing tradition of betting on the day and time of the river break up at Nenana has produced a long and unique climatological time series of river

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