Observed arrival · 2026-09-13
Old Seaman, a Synthetic Chesapeake Watch
A marine-planning prototype that puts weather, chart depth, tide, and route timing on one shared axis.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The prototype models a boat’s passage as a sequence of time-specific checks rather than treating a route as static: depth, draft, tide, wind-driven water level, and safety margin are compared at the selected hour. Its visible scenarios use ECMWF-like, GFS-like, and HRRR-like labels, but the page states that no corresponding model data is used. The Patapsco approach example also exposes wind bands from under 12 kt to 28+ kt and marks synthetic results as DEMO GO, CAUTION, or NO-GO.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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