# Coastal Flood Advisory: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/2e1d44f741f3ee8e

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-10-28 13:46 ingested 2026-10-29 02:55

[original source ↗](https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.fb9442f21309df68f99fa20dde0a5e8992e0e68c.001.1)

## retained text



```
Coastal Flood Advisory — San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Severity: Minor. Certainty: Likely.
* WHAT...Up to 1.9 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal
waterways.

* WHERE...Bay Shoreline locations of San Pablo Bay, San
Francisco Bay, and Monterey Bay.

* WHEN...Until 6 PM PDT Saturday.

* IMPACTS...High tides will result in flooding of low-lying
infrastructure, isolated road closures, and coastal erosion.
Rising tides will bring water and waves farther up the beach
than normal, restricting escape from beaches and coastal
areas. More substantial impacts are expected along bayshore
Marin County where increased flooding is anticipated across
low lying areas.

* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 1.9 ft above normal (7.7 ft MLLW) at 01:43 PM
Thursday 10/29, 1.6 ft above normal (7.4 ft MLLW) at 02:39 PM
Friday 10/30, and 1.1 feet above normal (6.9 ft MLLW) at 03:44
PM on Saturday 10/31. These predictions include up to 1.2 ft of
surge that will enhance the astronomical tide and flooding
threat. High tide varies up to 90 minutes earlier or later along
the Pacific Coast and through the San Francisco Bay,
respectively.
```



document fetched 2026-10-29 02:55