# Bay Colony king tides and high water in 2021

> In 2021, NOAA's Sewells Point tide gauge recorded water high enough for FloodRoute's model to put at least one Bay Colony road at risk on 46 days. The highest was 5.40 ft on Sunday, May 30, 2021, 2.41 ft above the tide tables, with 1 road at risk, including South Bay Shore Drive.

**Estimates, not records of actual flooding.** Each day is NOAA's verified high water at the tide gauge, run through FloodRoute's flood model on today's roads and elevations, in dry weather. Drains, levees, tide gates, rain, road changes and elevation error all mean real conditions differed. Not for property, real-estate, insurance, lending, engineering or legal decisions.

## Every day with roads at risk (46)

| Date | High water (Sewells Point gauge, ft MLLW) | vs tide tables | Roads at risk | Severity | Deepest streets (model) |
|---|---|---|---|---|---|
| Jan 6, 2021 | 3.93 | +1.80 ft | 1 | Possible | South Bay Shore Drive |
| Jan 9, 2021 | 4.42 | +1.98 ft | 1 | Likely | South Bay Shore Drive |
| Jan 10, 2021 | 3.97 | +1.41 ft | 1 | Possible | South Bay Shore Drive |
| Jan 28, 2021 | 4.36 | +1.93 ft | 1 | Likely | South Bay Shore Drive |
| Jan 31, 2021 | 3.97 | +1.77 ft | 1 | Possible | South Bay Shore Drive |
| Feb 1, 2021 | 4.43 | +2.04 ft | 1 | Likely | South Bay Shore Drive |
| Feb 2, 2021 | 4.44 | +2.18 ft | 1 | Likely | South Bay Shore Drive |
| Feb 3, 2021 | 4.33 | +2.04 ft | 1 | Possible | South Bay Shore Drive |
| Feb 12, 2021 | 4.01 | +1.52 ft | 1 | Possible | South Bay Shore Drive |
| Feb 13, 2021 | 3.89 | +1.47 ft | 1 | Possible | South Bay Shore Drive |
| Mar 19, 2021 | 4.52 | +2.57 ft | 1 | Likely | South Bay Shore Drive |
| Mar 20, 2021 | 3.89 | +1.65 ft | 1 | Possible | South Bay Shore Drive |
| Apr 12, 2021 | 4.38 | +1.63 ft | 1 | Likely | South Bay Shore Drive |
| Apr 13, 2021 | 3.89 | +1.16 ft | 1 | Possible | South Bay Shore Drive |
| Apr 16, 2021 | 4.23 | +1.63 ft | 1 | Possible | South Bay Shore Drive |
| May 30, 2021 | 5.40 | +2.41 ft | 1 | Severe | South Bay Shore Drive |
| May 31, 2021 | 4.07 | +1.28 ft | 1 | Possible | South Bay Shore Drive |
| Jun 11, 2021 | 4.07 | +1.36 ft | 1 | Possible | South Bay Shore Drive |
| Jun 12, 2021 | 4.09 | +1.42 ft | 1 | Possible | South Bay Shore Drive |
| Jun 24, 2021 | 3.88 | +0.64 ft | 1 | Possible | South Bay Shore Drive |
| Aug 21, 2021 | 3.90 | +0.74 ft | 1 | Possible | South Bay Shore Drive |
| Aug 22, 2021 | 3.96 | +0.84 ft | 1 | Possible | South Bay Shore Drive |
| Sep 10, 2021 | 4.08 | +0.77 ft | 1 | Possible | South Bay Shore Drive |
| Sep 17, 2021 | 3.93 | +0.82 ft | 1 | Possible | South Bay Shore Drive |
| Sep 19, 2021 | 3.90 | +0.78 ft | 1 | Possible | South Bay Shore Drive |
| Sep 24, 2021 | 4.05 | +0.99 ft | 1 | Possible | South Bay Shore Drive |
| Oct 6, 2021 | 3.90 | +0.55 ft | 1 | Possible | South Bay Shore Drive |
| Oct 7, 2021 | 4.24 | +0.75 ft | 1 | Possible | South Bay Shore Drive |
| Oct 8, 2021 | 4.16 | +0.60 ft | 1 | Possible | South Bay Shore Drive |
| Oct 9, 2021 | 4.59 | +1.05 ft | 1 | Likely | South Bay Shore Drive |
| Oct 10, 2021 | 5.13 | +1.66 ft | 1 | Likely | South Bay Shore Drive |
| Oct 11, 2021 | 5.13 | +1.80 ft | 1 | Likely | South Bay Shore Drive |
| Oct 12, 2021 | 4.43 | +1.25 ft | 1 | Likely | South Bay Shore Drive |
| Oct 13, 2021 | 3.98 | +0.95 ft | 1 | Possible | South Bay Shore Drive |
| Oct 16, 2021 | 4.15 | +1.24 ft | 1 | Possible | South Bay Shore Drive |
| Oct 28, 2021 | 4.51 | +1.91 ft | 1 | Likely | South Bay Shore Drive |
| Oct 29, 2021 | 4.89 | +2.31 ft | 1 | Likely | South Bay Shore Drive |
| Oct 30, 2021 | 4.33 | +1.74 ft | 1 | Possible | South Bay Shore Drive |
| Nov 3, 2021 | 3.99 | +0.81 ft | 1 | Possible | South Bay Shore Drive |
| Nov 5, 2021 | 4.53 | +1.03 ft | 1 | Likely | South Bay Shore Drive |
| Nov 6, 2021 | 4.99 | +1.47 ft | 1 | Likely | South Bay Shore Drive |
| Nov 7, 2021 | 5.28 | +1.81 ft | 1 | Likely | South Bay Shore Drive |
| Nov 8, 2021 | 4.73 | +1.41 ft | 1 | Likely | South Bay Shore Drive |
| Nov 9, 2021 | 3.96 | +0.83 ft | 1 | Possible | South Bay Shore Drive |
| Dec 30, 2021 | 3.99 | +1.48 ft | 1 | Possible | South Bay Shore Drive |
| Dec 31, 2021 | 4.09 | +1.40 ft | 1 | Possible | South Bay Shore Drive |

[All Bay Colony history](https://floodroute.com/va/bay-colony/history.md) · [Live forecast](https://floodroute.com/va/bay-colony.md)

Data: [CSV](https://floodroute.com/data/history/va/bay-colony.csv) · [JSON](https://floodroute.com/data/history/va/bay-colony.json) · Open Database License (ODbL) 1.0 (https://opendatacommons.org/licenses/odbl/1-0/) · Credit: FloodRoute (floodroute.com), © OpenStreetMap contributors, NOAA CO-OPS · [All towns](https://floodroute.com/data.md)

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Web version: https://floodroute.com/va/bay-colony/history/2021 · Site index for AI agents: https://floodroute.com/llms.txt · Every page is available as Markdown: add `.md` to its URL.

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