Master's MateSafety Initiative Network

The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.

Research Vessel

Tidewater

Research Vessel · United States of America · last seen 37°N 77°W · Jun 2026 · MMSI 367573920 · Call sign WDG8091

Not yet on Master's Mate

Type

Research Vessel

Flag

USA

Length

13 m

Beam

5 m

Draft

1.5 m

Call sign

WDG8091

Official No.

1245913

First reported

Jun 2026

Last reported

Jun 2026

AIS reports

Registered in the United States, Tidewater is a 13-metre vessel. Tidewater has a beam of 5 m and a 1.5 m draft. She's listed under MMSI 367573920, call sign WDG8091. Tidewater can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.

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Last known position · Jun 3, 2026

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Position

37.0445° N, 76.5509° W

Crossing Chesapeake Bay? You're never out there alone.

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Joining the Safety Initiative Network doesn't just put Tidewater on the map. It hands you the full bridge:

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

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About Tidewater

What kind of vessel is Tidewater?

Tidewater is a Research Vessel flagged to United States of America.

Where was Tidewater last seen?

Tidewater was last reported in Chesapeake Bay in Jun 2026 on public AIS.

What is Tidewater's MMSI?

Tidewater's MMSI is 367573920. Call sign WDG8091.

How big is Tidewater?

Tidewater is about 13 m long, 5 m on the beam, drawing 1.5 m.

Is Tidewater on the Master's Mate Safety Initiative Network?

Not yet. If Tidewater is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).