Data sources & credits

1. Model publication times

Models and their publication times refer to services of NOAA NCEP, ECMWF, DWD, DMI, Environment and Climate Change Canada, MET Norway and many other providers, each linked on its model page. Ilma does not redistribute forecast data, only information about when it is published.

2. Radio stations and schedules

NAVTEX stations: IMO GMDSS.1/Circ.21 via ITU MARS. Radiofax: NOAA National Weather Service, Worldwide Marine Radiofacsimile Broadcast Schedules. Coast radio and public radio: NGA Publication 117 (Radio Navigational Aids) and national coastguards, maritime administrations, weather services and broadcasters, each linked on the station card.

3. Map

Map data © OpenStreetMap contributors, available under the Open Database Licence (ODbL). Map tiles by OpenFreeMap, schema © OpenMapTiles (CC BY 4.0). Rendered with MapLibre GL JS.

4. Fonts

IBM Plex Sans and IBM Plex Mono, © IBM Corp., and Sora, © The Sora Project Authors, are used under the SIL Open Font License 1.1.

5. Open-source software

Ilma is built with the following open-source software. Each is used under the licence shown, and each licence asks that its copyright notice is kept with the software.

• Next.js: © 2025 Vercel, Inc., MIT licence
• React: © Meta Platforms, Inc. and affiliates, MIT licence
• MapLibre GL JS: © 2023 MapLibre contributors, BSD 3-Clause licence
• Better Auth: © 2024 to present Bereket Engida, MIT licence
• Tailwind CSS: © Tailwind Labs, Inc., MIT licence
• posthog-js: © 2020 PostHog / Hiberly, Inc. and © 2015 Mixpanel, Inc., Apache 2.0 and MIT licence
• Sentry SDK for Next.js: © 2021 Functional Software, Inc. dba Sentry, MIT licence
• Zod: © 2025 Colin McDonnell, MIT licence
• yaml: © Eemeli Aro, ISC licence

6. Corrections

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