Mode · Shellfish

Clamming & minus tides

This mode is designed to surface extreme minus tide windows at a glance for a short list of Alaska clamming beaches. Instead of scanning endless tide tables, you see a ranked list of “digging windows” with simple safety notes.

Target level
-2.0 ft
Example minus-tide threshold
Window length
1–2 hr
Time around the lowest point
Concept: “digging windows” list

For each featured beach, AlaskaTides will compute windows where:

  • The predicted tide drops below a configurable threshold (for example, -2.0 ft MLLW).
  • The low tide occurs in daylight, or within a chosen daylight buffer.
  • Winds and swell (when available) are inside reasonable comfort limits.

v1 surfaces the structure and URLs; future iterations can call the same NOAA APIs used on the home page to calculate windows client-side, then cache results for offline use.

Example beaches & data hooks
Ninilchik area
Cook Inlet beaches
Mapped to nearest tide station
Minus tides here are popular for digging but can have strong currents and soft mud—safety copy belongs on every window.
Kachemak Bay
Tidepooling & clams
Multiple stations
Ideal for combining this mode with Photography Mode when minus tides line up with morning light.