May 4 2023: Over the past week, the sea ice had a decrease, since last week, by a slightly lower rate of 2.03%, from the level on 04/27/2023 of 13.690 M km2 to 13.414 M km2 for this week.
![](https://akclimate.org/wp-content/uploads/2023/05/NH_seaice_extent-2023-5-4-1024x623.png)
Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/).
The negative sea ice anomaly this week was slightly higher than the anomaly of -0.472 M km2 on 04/27/2023 to a lesser negative anomaly of -0.391 M km2 on 05/04/2023 and so less anomalously negative for this time of year.
![](https://akclimate.org/wp-content/uploads/2023/05/NH_seaice_extent-anomaly2023-5-4-1024x623.png)
Data Source: National Snow & Ice Data Center (NSIDC; https://nsidc.org/).