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closed Sea and Lake Ice closed 2020-03-27
| Date | Type | Magnitude |
|---|---|---|
| 2017-04-21T00:00:00Z | Point | — |
| 2017-08-25T00:00:00Z | Point | — |
| 2017-12-29T00:00:00Z | Point | — |
| 2018-02-23T00:00:00Z | Point | — |
| 2018-03-23T00:00:00Z | Point | — |
| 2018-04-13T00:00:00Z | Point | — |
| 2018-04-20T00:00:00Z | Point | — |
| 2018-06-22T00:00:00Z | Point | — |
| 2018-07-13T00:00:00Z | Point | — |
| 2018-07-20T00:00:00Z | Point | — |
| 2018-08-10T00:00:00Z | Point | — |
| 2018-08-17T00:00:00Z | Point | — |
| 2018-08-31T00:00:00Z | Point | — |
| 2018-09-07T00:00:00Z | Point | — |
| 2018-09-21T00:00:00Z | Point | — |
| 2018-10-19T00:00:00Z | Point | — |
| 2018-11-02T00:00:00Z | Point | — |
| 2018-11-23T00:00:00Z | Point | — |
| 2018-11-30T00:00:00Z | Point | — |
| 2018-12-21T00:00:00Z | Point | — |
| 2019-01-25T00:00:00Z | Point | — |
| 2019-03-15T00:00:00Z | Point | — |
| 2019-03-22T00:00:00Z | Point | — |
| 2019-03-29T00:00:00Z | Point | — |
| 2019-04-12T00:00:00Z | Point | — |
| 2019-05-03T00:00:00Z | Point | — |
| 2019-05-10T00:00:00Z | Point | — |
| 2019-05-24T00:00:00Z | Point | — |
| 2019-06-07T00:00:00Z | Point | — |
| 2019-06-14T00:00:00Z | Point | — |
| 2019-07-12T00:00:00Z | Point | — |
| 2019-07-26T00:00:00Z | Point | — |
| 2019-08-09T00:00:00Z | Point | — |
| 2019-08-23T00:00:00Z | Point | — |
| 2019-09-13T00:00:00Z | Point | — |
| 2019-09-27T00:00:00Z | Point | — |
| 2019-10-18T00:00:00Z | Point | — |
| 2019-11-01T00:00:00Z | Point | — |
| 2019-11-22T00:00:00Z | Point | — |
| 2019-12-06T00:00:00Z | Point | — |
| 2020-01-17T00:00:00Z | Point | — |
| 2020-02-07T00:00:00Z | Point | — |
| 2020-02-21T00:00:00Z | Point | 50.0 NM^2 |
| 2020-03-06T00:00:00Z | Point | 50.0 NM^2 |
| 2020-03-13T00:00:00Z | Point | 50.0 NM^2 |