Shoreline conditions planner
Know when high water deserves a closer shoreline check.
For homes, docks, low roads, and routine shoreline checks, Perigee compares the next predicted high with observed water level, wind, and tide trend at a nearby station.
The result identifies the next high-water checkpoint and makes observed-water or prediction gaps impossible to mistake for a quiet read.
Start with the decision
The questions worth answering before the plan hardens.
- Question 01
When is the next high-water checkpoint for the shoreline I care about?
- Question 02
Is observed water already running close to the predicted high?
- Question 03
Could stronger wind or gusts add local water-level context that the tide table alone misses?
What Perigee combines
One window, with the inputs kept separate.
A single score can hide the reason a plan changed. The activity read keeps each coastal input visible and marks unavailable data instead of silently treating it as favorable.
- 01Next high
- The next predicted high tide and a focused check window around it.
- 02Observed water
- The latest reported level for comparison with the astronomical prediction.
- 03Wind + gusts
- Forecast context that can contribute to locally elevated water.
- 04Water trend
- Whether station water is rising, falling, slack, or unknown.
What comes back
A result you can inspect, not a verdict.
Perigee is a planning aid. It explains the window and the state of its inputs so you can make the next check with better context.
- 01
A station-local window for the next high-water check.
- 02
An explainable quiet, watch, or check-closely read—not a flood forecast.
- 03
Clear data gaps plus direct source context for the next verification step.
Field note
For flooding, emergencies, property protection, or road access, follow official NWS alerts and local emergency management. A nearby station may not represent conditions at your exact property.
Keep planning