Alaska Climate Research Center

The Alaska State Climate Center
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Arctic Sea Ice Extent

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 negative anomaly of -0.173 M km2 on 05/23/2024, and so more anomalously negative for this time of year.

Arctic Sea Ice Extent Archive

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 negative anomaly of -0.0965 M km2 on 05/16/2024, and so more anomalously negative for this time of year.

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 negative anomaly of -0.0882 M km2 on 05/09/2024, and so less anomalously negative for this time of year.

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 negative anomaly of -0.251 M km2 on 05/02/2024, and so more anomalously negative for this time of year.

Arctic Sea Ice Extent: April 25, 2024

April 25, 2024:  The  sea ice has decreased this week at a slightly higher rate of 1.95% (as opposed to last week’s decrease rate of 1.61%), from the level on 04/18/2024 of 14.084 M km2 to 13.809 M km2 for this week. And so the change to the sea ice melt season is now firmly in place.  The negative sea ice anomaly this week was less than the anomaly of -0.184 M km2 on 04/18/2024 to a lesser negative anomaly of -0.156 M km2 on 04/25/2024, and so less anomalously negative for this time of year.

Arctic Sea Ice Extent: April 18, 2024

April 18, 2024:  The  sea ice has decreased this week at a slightly higher rate of 1.61% (as opposed to last week’s decrease rate of 1.18%), from the level on 04/11/2024 of 14.314 M km2 to 14.084 M km2 for this week. The change to the sea ice melt season is now firmly in place.  The negative sea ice anomaly this week was less than the anomaly of -0.206 M km2 on 04/11/2024 to a lesser negative anomaly of -0.184 M km2 on 04/18/2024, and so less anomalously negative for this time of year.

Arctic Sea Ice Extent: April 11, 2024

April 11, 2024:  The sea ice has decreased this week at a rate of 1.18% (as opposed to last week’s decrease rate of 3.07%), from the level on 04/04/2024 of 14.485 M km2 to 14.314 M km2 for this week. The change to the sea ice melt season seems to have taken hold.  The negative sea ice anomaly this week was less than the anomaly of -0.237 M km2 on 04/04/2024 to a lesser negative anomaly of -0.206 M km2 on 04/11/2024, and so less anomalously negative for this time of year.