Category : Tutorials

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GRIB files and time zones

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An incomprehensible malfunction occurred recently for a Weather4D user, sailing in a “lost hole” on the edge of the Indian Ocean, namely the Cocos Islands, challenged me to the point of getting lost in conjectures. A GFS file due ten days ago categorically refused to be displayed in the application with the date, damn !

This unfortunate sailor - for which I would like to thank him - forced me to make a determined search for the cause of the problem.. After much procrastination, explorations of settings that may be faulty, since no other user had reported such a problem to us, the light finally came out ! Read more …

Update Weather4D R&N 2.0.92 -New charts update

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As part of the gradual conversion of raster charts to vector charts ENC (¹) on the platform Geogarage, Weather4D Routage & Navigation now includes the following ENC catalogs :

  • Portugal (derived from the productions of the Portuguese Hydrographic Service – IH)
  • Poland (derived from the productions of the Polish Hydrographic Service – HOPN)
  • Australia (derived from the productions of the Australian Hydrographic Service – AHO)

These ENC catalogs are added to the previous ones already available (Spain, Croatia, Germany, Netherland). Others are under negotiation such as Greece and Sweden.

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(¹) Geogarage to introduce ENC charts for Weather4D
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Weather4D renews its GRIB model offering

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Latest releases Lite, Routing, Routing & Navigation arrive with a full renewed list of weather and ocean models in order to allow users to benefit from the evolution of the offer of international forecasting models. At the same time, all GRIB files go to format GRIB-2, this allows for a reduction in their size and a better compression ratio. Read more …

El Niño weakening in the Pacific

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Following the prediction of an episode El Niño started in March 2023 (¹) and confirmed the following June (²), this climatic phenomenon of the Pacific Ocean, called ENSO (El Niño Southern Oscillation), strengthened until the end of December, early January 2024.

The February ENSO forecast developed by the U.S. Climate Prediction Center predicts that we are on the eve of an episode La Niña, even though the Pacific Ocean is still affected by the El Niño episode. According to the forecast, there is 79 % chance that El Niño will become neutral by April-June, and 55 % chance that the Pacific will return to ENSO La Niña between June and August.

Source : Tom Di Liberto – ENSO Blog / Climate.gov

Read more …

Weather4D R&N and distance calculations

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Since the arrival of ARM-based Mac (M1… M3…) and the system macOS 11 Big Sur, Weather4D Routage & Navigation works natively on our favorite computers (¹). But this happy event did not go, since then, without some small restrictions. The most annoying for users was, until this day, loss of distance calculation. This is carried out on touch devices by a two-finger long press, no function allowed the translation of this gesture on Mac. The mouse only has one pointer, not two ! Read more …

NMEA OneNet® : a new high-end communication standard

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20 years after NMEA 2000 and more than 40 years after NMEA0183, OneNet® is the third generation NMEA standard for marine data interfacing and networking.

In development since 2010 by NMEA members (1), to be published in late 2021, the OneNet standard is based on the IP Internet Protocol (2) version 6 (IPv6) and works on the IEEE Ethernet local network 802.3. This new standard aims to combine the three NMEA data standards — OneNet, NMEA 2000, NMEA0183 — on a single local network (LAN). Read more …

MacENCx64 finally offers global charting

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Since taking over MacENC at the end of the year 2020, become MacENCx64 (¹), it took three painstaking years for the company NavStation LLC to finalize the implementation of a global charting. Since January 1 2024 it is now done. A long negotiation with the ENC charting distributor ChartWorld (²) has enabled the creation of a range of vector charts in ENC S-57/S-63 format (³) as in-app purchase. Read more …

El Niño strengthens in the Pacific

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El Niño continues to develop in tropical Pacific regions. Forecasters expect the phenomenon to continue until spring, with 75 down to 85 % likely to become an intense event. A stronger El Niño – the definition of which will follow – means that it is more likely that we will see its effects reflected in winter temperatures and rain and snow patterns around the world.

Source & screenshots : NOAA – Emily Becker freely translated. Read more …