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| 20210223221354 | Allagash | ME | Allagash River | 02/18/2021 | 2021 | Freeze-up | -69.046113 | 47.08311 | - | ALLM1 | released | - |
| 20210218191624 | Jefferson City | MO | Missouri River | 02/16/2021 | 2021 | Freeze-up | -92.193715 | 38.596941 | - | JFFM7 | released | - |
| 20210503204541 | Fairbanks | - | Little Chena River | 04/28/2021 | 2021 | Break-up | -147.249688 | 64.885494 | - | - | not flooding | - |
| 20210503204442 | Fairbanks | AK | Little Chena River | 04/28/2021 | 2021 | Break-up | -147.405475 | 64.856194 | - | - | not flooding | - |
| 20210503204313 | Fairbanks | - | Chena River | 04/28/2021 | 2021 | Break-up | -147.637634 | 64.845638 | - | - | not flooding | - |
| 20210503204221 | Fairbanks | - | Chena River | 04/27/2021 | 2021 | Break-up | -147.70877 | 64.846365 | - | - | not flooding | - |
| 20210503204127 | Fairbanks | AK | Chena River | 04/27/2021 | 2021 | Break-up | -147.410469 | 64.846641 | - | - | not flooding | - |
| 20210503204030 | Fairbanks | AK | Chena River | 04/27/2021 | 2021 | Break-up | -147.649381 | 64.842591 | - | - | not flooding | - |
| 20210503203846 | Fairbanks | AK | Chena River | 04/28/2021 | 2021 | Break-up | -147.690473 | 64.840041 | - | - | not flooding | - |
| 20210503203757 | Fairbanks | AK | Chena River | 04/28/2021 | 2021 | Break-up | -147.722694 | 64.844225 | - | - | not flooding | - |
| 20210503203639 | Fairbanks | AK | Chena River | 04/27/2021 | 2021 | Break-up | -147.81258 | 64.842369 | - | - | not flooding | - |
| 20210503202837 | Fairbanks | AK | Tanana River | 04/27/2021 | 2021 | Break-up | -147.838889 | 64.792778 | - | TAFA2 | not flooding | - |
| 20210503202630 | Fairbanks | AK | Tanana River | 04/27/2021 | 2021 | Break-up | -147.322559 | 64.711828 | - | - | not flooding | - |
| 20210127140139 | Portage | WI | Wisconsin River | 01/23/2021 | 2021 | Freeze-up | -89.47383 | 43.53635 | - | PORW3 | released | - |
| 20210504214627 | Sleetmute | AK | Kuskokwim River | 04/29/2021 | 2021 | Break-up | -157.177477 | 61.707401 | - | - | not flooding | - |
| 20210504214520 | Chitina | AK | Copper River | 04/27/2021 | 2021 | Break-up | -144.412222 | 61.525556 | - | - | not flooding | - |
| 20210323190444 | East Berkshire | VT | Missisquoi River | 03/19/2021 | 2021 | Break-up | -72.703383 | 44.935155 | - | - | released | - |
| 20210210193017 | Lewellen | NE | North Platte River | 02/10/2021 | 2021 | Freeze-up | -102.125556 | 41.316944 | - | LEWN1 | released | - |
| 20210210192837 | Pembine | WI | Menominee River | 02/10/2021 | 2021 | Freeze-up | -87.777612 | 45.592645 | - | PBIW3 | released | - |
| 20210210191834 | Crouseville | ME | Aroostook River | 01/13/2021 | 2021 | Freeze-up | -68.04429 | 46.739286 | - | WSHM1 | released | - |
| 20210210185345 | Taylor | NE | North Loup River | 02/07/2021 | 2021 | Freeze-up | -99.379167 | 41.776944 | - | TYLN1 | released | - |
| 20210210183205 | Sherman | MI | Manistee River | 02/07/2021 | 2021 | Freeze-up | -85.698611 | 44.436389 | - | SHRM4 | released | - |
| 20210119210206 | Three Forks | MT | Jefferson River | 01/13/2021 | 2021 | Unknown | -111.595833 | 45.897778 | - | TFKM8 | released | - |
| 20210323190249 | Cambridge | VT | Lamoille River | 03/19/2021 | 2021 | Break-up | -72.868161 | 44.645064 | - | - | released | - |
| 20210323185851 | Jay | NY | Ausable River | 03/19/2021 | 2021 | Break-up | -73.726805 | 44.372651 | - | - | released | - |
| 20210216225746 | Spearfish | SD | Spearfish Creek | 02/16/2021 | 2021 | Freeze-up | -103.851952 | 44.476767 | - | - | released | - |
| 20210216225608 | Belgrade | MT | Yellow Dog River | 02/16/2021 | 2021 | Freeze-up | -111.251583 | 45.743323 | - | - | released | - |
| 20210216225310 | Spencer | NE | Niobrara River | 02/12/2021 | 2021 | Freeze-up | -98.657082 | 42.808902 | - | - | released | - |
| 20210128183314 | Gibbon | NE | Platte River | 01/27/2021 | 2021 | Freeze-up | -98.848233 | 40.691296 | - | KEAN1 | released | No damages were reported. |
| 20210128182837 | North Platte | NE | North Platte River | 01/28/2021 | 2021 | Freeze-up | -100.758889 | 41.153889 | - | NPTN1 | released | No damages were reported. |
| 20210128182346 | Lewellen | NE | North Platte River | 01/27/2021 | 2021 | Freeze-up | -100.758889 | 41.153889 | - | LEWN1 | released | No damages were reported. |
| 20210330213233 | Washburn | ME | Aroostook River | 03/29/2021 | 2021 | Break-up | -68.045331 | 46.739861 | - | - | released | - |
| 20210330213048 | Fort Kent | ME | St. John River | 03/27/2021 | 2021 | Break-up | -68.743217 | 47.231741 | - | - | released | - |
| 20210330212750 | Keegan | ME | St. John River | 03/27/2021 | 2021 | Break-up | -67.966773 | 47.202428 | - | - | released | - |
| 20210316203958 | Sheboygan | WI | Sheboygan River | 03/10/2021 | 2021 | Break-up | -87.752222 | 43.741389 | - | SEBW3 | released | - |
| 20210309202902 | Buffalo | NY | Cazenovia Creek | 03/07/2021 | 2021 | Break-up | -78.82684 | 42.861034 | - | - | released | - |
| 20210112222701 | Fort Fairfield | ME | Aroostook River | 12/26/2020 | 2021 | Break-up | -67.835 | 46.774652 | - | WSHM1 | released | - |
| 20210112223249 | Grand Isle | ME | St. John River | 12/26/2020 | 2021 | Break-up | -68.133938 | 47.294809 | - | FTKM1 | released | - |
| 20210420204957 | Anchor Point | AK | Anchor River | 04/19/2021 | 2021 | Break-up | -151.836389 | 59.772222 | - | APBA2 | not flooding | - |
| 20210203184540 | Algonac | MI | St. Clair River | 02/02/2021 | 2021 | Freeze-up | -82.520647 | 42.617578 | - | - | released | - |
| 20210129203338 | Latham Park | IL | Rock River | 01/29/2021 | 2021 | Freeze-up | -89.058333 | 42.368611 | - | LATI2 | released | - |
| 20210105223414 | Lewellen | NE | North Platte River | 12/31/2020 | 2021 | Freeze-up | -102.125556 | 41.316944 | - | lewn1 | released | - |
| 20210105222801 | Three Forks | MT | Jefferson River | 12/27/2020 | 2021 | Unknown | -111.595833 | 45.897778 | - | tfkm8 | released | - |
| 20210105222411 | Portage | WI | Wisconsin River | 12/28/2020 | 2021 | Unknown | -89.47383 | 43.53635 | - | porw3 | released | - |
| 20210202211033 | Fremont | NE | Platte River | 01/29/2021 | 2021 | Freeze-up | -96.508261 | 41.405484 | - | NBDN1 | released | - |
| 20210202210846 | Genoa | NE | Loup River | 01/29/2021 | 2021 | Freeze-up | -97.723611 | 41.418611 | - | GELN1 | released | - |
| 20210503204758 | Gold Creek | AK | Susitna River | 05/01/2021 | 2021 | Break-up | -149.691111 | 62.767778 | - | - | released | - |
| 20210503204700 | Sourdough | AK | Gulkana River | 04/29/2021 | 2021 | Break-up | -145.530833 | 62.520833 | - | - | not flooding | - |
| 20210302174600 | Ewing | MO | Middle Fabius River | 02/26/2021 | 2021 | Break-up | -91.705556 | 40.028889 | - | EWMM7 | released | - |
| 20210302174443 | Milan | OH | Huron River | 02/25/2021 | 2021 | Break-up | -82.60823 | 41.300885 | - | MILO1 | released | - |