# Mill Valley king tides and high water in 1998

> In 1998, NOAA's San Francisco tide gauge recorded water high enough for FloodRoute's model to put at least one Mill Valley road at risk on 58 days. The highest was 8.38 ft on Friday, February 6, 1998, 2.21 ft above the tide tables, with 23 roads at risk, including Ryan Avenue, Plymouth Avenue and Park Terrace.

**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 (58)

| Date | High water (San Francisco gauge, ft MLLW) | vs tide tables | Roads at risk | Severity | Deepest streets (model) |
|---|---|---|---|---|---|
| Jan 1, 1998 | 7.00 | +0.86 ft | 1 | Possible | Sycamore Avenue |
| Jan 2, 1998 | 7.03 | +1.30 ft | 1 | Possible | Sycamore Avenue |
| Jan 4, 1998 | 6.88 | +1.29 ft | 1 | Possible | Sycamore Avenue |
| Jan 7, 1998 | 6.88 | +0.62 ft | 1 | Possible | Sycamore Avenue |
| Jan 8, 1998 | 7.10 | +0.63 ft | 1 | Likely | Sycamore Avenue |
| Jan 9, 1998 | 7.57 | +0.96 ft | 13 | Severe | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 10, 1998 | 7.62 | +0.95 ft | 13 | Severe | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 11, 1998 | 7.33 | +0.72 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 12, 1998 | 7.44 | +0.96 ft | 10 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 13, 1998 | 6.70 | +0.44 ft | 1 | Possible | Sycamore Avenue |
| Jan 14, 1998 | 6.68 | +0.71 ft | 1 | Possible | Sycamore Avenue |
| Jan 25, 1998 | 6.73 | +0.48 ft | 1 | Possible | Sycamore Avenue |
| Jan 26, 1998 | 7.13 | +0.67 ft | 1 | Likely | Sycamore Avenue |
| Jan 27, 1998 | 7.29 | +0.69 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 28, 1998 | 7.43 | +0.81 ft | 10 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 29, 1998 | 7.43 | +0.94 ft | 10 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Jan 30, 1998 | 6.74 | +0.57 ft | 1 | Possible | Sycamore Avenue |
| Jan 31, 1998 | 6.64 | +0.94 ft | 1 | Possible | Sycamore Avenue |
| Feb 1, 1998 | 6.72 | +0.94 ft | 1 | Possible | Sycamore Avenue |
| Feb 2, 1998 | 6.85 | +0.97 ft | 1 | Possible | Sycamore Avenue |
| Feb 3, 1998 | 7.98 | +2.02 ft | 14 | Severe | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Feb 4, 1998 | 7.33 | +1.30 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Feb 5, 1998 | 7.29 | +1.20 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Feb 6, 1998 | 8.38 | +2.21 ft | 23 | Severe | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Feb 7, 1998 | 7.87 | +1.64 ft | 14 | Severe | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Feb 8, 1998 | 7.37 | +1.13 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Feb 9, 1998 | 6.88 | +0.68 ft | 1 | Possible | Sycamore Avenue |
| Feb 10, 1998 | 6.89 | +0.80 ft | 1 | Possible | Sycamore Avenue |
| Feb 11, 1998 | 6.64 | +0.73 ft | 1 | Possible | Sycamore Avenue |
| Feb 23, 1998 | 6.91 | +0.92 ft | 1 | Possible | Sycamore Avenue |
| Feb 24, 1998 | 6.89 | +0.65 ft | 1 | Possible | Sycamore Avenue |
| Mar 31, 1998 | 6.68 | +0.50 ft | 1 | Possible | Sycamore Avenue |
| Apr 1, 1998 | 6.66 | +0.66 ft | 1 | Possible | Sycamore Avenue |
| May 24, 1998 | 6.81 | +0.17 ft | 1 | Possible | Sycamore Avenue |
| May 26, 1998 | 6.74 | +0.06 ft | 1 | Possible | Sycamore Avenue |
| May 27, 1998 | 6.79 | +0.23 ft | 1 | Possible | Sycamore Avenue |
| May 28, 1998 | 6.83 | +0.54 ft | 1 | Possible | Sycamore Avenue |
| Jun 20, 1998 | 6.72 | +0.16 ft | 1 | Possible | Sycamore Avenue |
| Jun 21, 1998 | 6.94 | +0.18 ft | 1 | Possible | Sycamore Avenue |
| Jun 22, 1998 | 6.96 | +0.12 ft | 1 | Possible | Sycamore Avenue |
| Jun 23, 1998 | 6.99 | +0.20 ft | 1 | Possible | Sycamore Avenue |
| Jun 25, 1998 | 6.80 | +0.19 ft | 1 | Possible | Sycamore Avenue |
| Jul 19, 1998 | 6.82 | +0.15 ft | 1 | Possible | Sycamore Avenue |
| Jul 20, 1998 | 6.83 | +0.06 ft | 1 | Possible | Sycamore Avenue |
| Jul 21, 1998 | 6.77 | −0.01 ft | 1 | Possible | Sycamore Avenue |
| Jul 22, 1998 | 6.75 | +0.07 ft | 1 | Possible | Sycamore Avenue |
| Jul 24, 1998 | 6.60 | +0.12 ft | 1 | Possible | Sycamore Avenue |
| Aug 6, 1998 | 6.71 | +0.23 ft | 1 | Possible | Sycamore Avenue |
| Aug 7, 1998 | 6.68 | +0.15 ft | 1 | Possible | Sycamore Avenue |
| Sep 4, 1998 | 6.66 | +0.32 ft | 1 | Possible | Sycamore Avenue |
| Sep 5, 1998 | 6.67 | +0.27 ft | 1 | Possible | Sycamore Avenue |
| Nov 30, 1998 | 7.30 | +0.97 ft | 9 | Likely | Ryan Avenue, Plymouth Avenue, Park Terrace |
| Dec 1, 1998 | 6.75 | +0.08 ft | 1 | Possible | Sycamore Avenue |
| Dec 2, 1998 | 7.00 | +0.08 ft | 1 | Possible | Sycamore Avenue |
| Dec 3, 1998 | 7.16 | +0.14 ft | 1 | Likely | Sycamore Avenue |
| Dec 4, 1998 | 6.99 | +0.02 ft | 1 | Possible | Sycamore Avenue |
| Dec 5, 1998 | 6.60 | −0.14 ft | 1 | Possible | Sycamore Avenue |
| Dec 31, 1998 | 6.68 | −0.31 ft | 1 | Possible | Sycamore Avenue |

[All Mill Valley history](https://floodroute.com/ca/mill-valley/history.md) · [Live forecast](https://floodroute.com/ca/mill-valley.md)

Data: [CSV](https://floodroute.com/data/history/ca/mill-valley.csv) · [JSON](https://floodroute.com/data/history/ca/mill-valley.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/ca/mill-valley/history/1998 · 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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