🌎 ShipAtlas by Maritime Optima is a data and knowledge driven maritime software empowering you and your colleagues to work from anywhere.

To start using ShipAtlas, you will first need a user account. If you don’t have one already, you can sign up for free here: app.maritimeoptima.com

How to use marine weather layers

If you use ShipAtlas on your computer, Weather layers may be found in the right menu.

Here you can access different marine weather forecast options:

  • Wind

  • Waves

  • Ocean currents

  • Precipitation

Note, that you can select one weather layer at a time.

For wind, waves and perceptions, you can also access a weather forecast showing what will the weather be like seven days ahead and two days behind. We update weather data every 24 hours.

Select the type of weather layer you want to check, then use the slider to know the weather forecast. If you want to check different weather options, open the weather box again and select a new weather layer.

Check marine wind forecast

The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land.

The wind direction is shown as particles.

We selected colors according to the Beaufort scale. Beaufort 1 is up to 2,92 knots or 1,5 ms/sec and Beaufort 11 is between 41,99 - 49 knots (or 21,6 - 25,21 ms/sec):

Check the waves on the sea

Usually waves are divided into five types:

  • Wind waves and swell

  • Wind surges

  • Sea waves of seismic origin

  • Standing waves or seiches

  • Gravity waves

Wave length can be divided into Short wave (- 100 m), Average wave (100–200 m) and Long wave (201 m +).

In our marine weather map we do not distinguish the difference between types of waves, but we visualize the wind waves. We are using the colors from the Douglas scale / Seastate scale. BLUE is Seastate 1, where the waves are between 0 - 0.1 mtrs. RED color is Seastate 8, where the waves are between 9.0 mtrs - 14 mtrs.

See the ocean currents

Winds, water density and tides "create" ocean currents. Earth's rotation causes ocean currents in the Northern Hemisphere to veer to the right and in the Southern Hemisphere to the left.

We measure Ocean currents in mtrs / sec. The scientific way of measuring waves are; sverdrup (sv), where 1 sv is equivalent to a volume flow rate of 1,000,000 m3 (35,000,000 cu ft) per second.

Explore the Precipitation map

We measure precipitation in mm/day. In this marine map we do not separate different types of precipitation.

You can see the following colors on the map. Light blue defines the precipitation rate to be up to 8,64 mm /last 24 hours, while the darkest red define the precipitation rate to be above 304,13 mm/last 24 hours.

This is the edition of ShipAtlas's weather map, and it is based on public available weather data sources. Our team is constantly working on the software improvements, including this feature.

Note, that at the moment weather layers are available only on the web version.

Next steps

After you started to work with map layers, here are some tips for you what to do next:

πŸ’‘ We recommend you to use both the mobile app and desktop application to get the best of ShipAtlas by Maritime Optima. Use the same login. Synced in real-time.

If you have any problems or questions, let us know in the chat box or send an e-mail to post@maritimeoptima.com and we will help you.

Read next: The International Navigating Limits (INL)

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