Tide & Marine ConditionsEvidence report · prepared 30 August 2026https://tide99.com/entity/9014098
NOAA station 9014098
MI
Fort Gratiot
Official tide predictions with the datum, units and time basis kept visible.
Published location
Where is Fort Gratiot?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
43.006900, -82.422500
Open the interactive map ↗Map data © OpenStreetMap contributors
Visual evidence
Recent published observations
The chart visualises the values listed in the table below; it does not interpolate missing records.
Plan the next water window
Next published high and low tides
No prediction series is available for this station.
How to read this page
Predicted heights are astronomical estimates relative to LWD. Weather, pressure, wind and river flow can move observed water away from the prediction.
For navigation or safety
This is a planning aid, not a navigational chart or warning service. Check NOAA notices, local conditions and official marine guidance before acting.
Source, identifiers and limitations
Station ID
9014098
Source
NOAA CO-OPS Data API
Prediction datum
LWD
Time basis
gmt