External tool only
Coastal Inundation Dashboard
NOAA Tides & Currents (CO-OPS) · released Ongoing
Visit Coastal Inundation Dashboard
A station-based dashboard of real-time, forecast and historical water levels at 200+ NOAA tide gauges, with each station's minor, moderate and major flood thresholds. It shows gauge readings rather than flood-extent areas; its sea-level-rise mapping comes from NOAA's Sea Level Rise Viewer. External tool only: it is public-domain federal data, but this atlas already maps the same gauge thresholds and the Sea Level Rise Viewer, so it won’t get its own map layer.
General Information
- Geographic scope within coastal California
- U.S. coasts, including California
- Tool release year and updates
- Ongoing
Projected Flood Information
- Annual flood risk
- No
- Annual flood risk (various return periods)
- No
- Base flood elevation
- No
- Coastal groundwater flooding
- No
- Erosion projections
- No
- FEMA flood zones
- No
- High tide flooding thresholds (minor/moderate/major)
- Yes
- King tide
- No
- Mapping uncertainty / confidence layers
- No
- Marsh migration space
- No
- Near-100-year storm scenario
- No
- Shoreline erosion
- No
- Storm surge / extreme tide
- Yes
- Stormwater / compound flooding
- No
- Wave run-up
- No
Shoreline Processes
- Coastal flood thresholds
- No
- Coastal groundwater
- No
- Compound flooding with stormwater runoff
- No
- Dynamic hydrodynamic modeling
- No
- Erosion / shoreline change
- No
- Habitat-based risk reduction
- No
- High tide flooding
- Yes
- Hurricane storm surge
- No
- King tide
- No
- Levee overtopping
- No
- Marsh migration
- No
- Marsh migration / habitat change
- No
- Regulatory base flood elevation
- No
- Riverine and coastal flood zones
- No
- SLR inundation
- No
- Shoreline erosion
- No
- Shoreline overtopping
- No
- Storm surge / extreme tide
- Yes
- Tide-gauge monitoring
- Yes
- Wave run-up
- No
Data, Reports, and Summary Information Available
- Reports, summary info, or other analyses available for download
- Water-level data downloadable through the CO-OPS API; flood thresholds through the CO-OPS Metadata API.
General Information Regarding Sea Level Rise Model
- Base sea level rise model
- None of its own; links to NOAA's Sea Level Rise Viewer for scenario mapping.
Strengths and Limitations
- Top 3 strengths
- Live and 48-hour forecast water levels, so it answers “is it flooding now?”
- Grounded in measured tide-gauge data
- Flags stations that may flood in the near term
- Top 3 limitations
- Point data at gauges only, no flood-extent areas
- No exposure or infrastructure-impact analysis