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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.
Commercial Fishing Vessel

TEMPEST

MMSI 366118480 · Call sign WAR9839

Not yet on Master's Mate
Type
Commercial Fishing Vessel
Flag
USAUSA
Length
32.3 m
Beam
7.9 m
Draft
3 m
Call sign
WAR9839
IMO
7309314
Official No.
506261
AIS reports
1

Registered in the United States, TEMPEST is a 32.3-metre commercial fishing vessel. She's built with a 7.9-metre beam and a 3 m draft. She's listed under MMSI 366118480, call sign WAR9839, IMO 7309314. The Master's Mate Safety Initiative Network welcomes TEMPEST — free to join, cruiser-run, and always on watch.

Free forever · No credit card · for working captains

Know where the fleet is. Get TEMPEST home safe.

Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.

Keep the fleet in sight — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever TEMPEST roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for working captains

The most powerful cruising platform ever built — yours, free.

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

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.
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim TEMPEST and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About TEMPEST

What kind of vessel is TEMPEST?
TEMPEST is a Commercial Fishing Vessel flagged to United States of America.
What is TEMPEST's MMSI?
TEMPEST's MMSI is 366118480. Call sign WAR9839. IMO 7309314.
How big is TEMPEST?
TEMPEST is about 32.3 m long, 7.9 m on the beam, drawing 3 m.
Is TEMPEST on the Master's Mate Safety Initiative Network?
Not yet. If TEMPEST is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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