Forecast Models

Windyweek forecast models currently run or used - territory coverage, resolution and update times.

Windyweek Forecast Models

Model - Resolution Geographic Coverage Update Times (all times are in UTC) Forecast Length
Covers Central Europe. 3h, 9h, 15h, 21h 72h
Covers whole Europe. 4:10h, 10:10h, 16:10h, 22:10h 78h
WN3 – 11km Short Range Covers whole Europe. Hourly source runs; availability varies. Today through the end of the day containing now +72 hours, in local time, where available.
IFS – 9km Short Range Covers whole Europe. Every 6 hours; reference times: 00, 06, 12, 18 UTC. Availability varies. Today through the end of the day containing now +72 hours, in local time, where available.
Mix – 10km Short Range Covers whole Europe. Recomputed when either source is published. Today through the end of the day containing now +72 hours, in local time, where available.
Covers whole Europe. 4:45h, 10:45h, 16:45h, 22:45h 384h
Covers whole Europe. Every 6 hours; reference times: 00, 06, 12, 18 UTC. Availability varies. 120–180h
Covers whole Europe. Every 6 hours; reference times: 00, 06, 12, 18 UTC. Availability varies. 354–360h
Covers whole Europe. Every 6 hours; reference times: 00, 06, 12, 18 UTC. Availability varies. 162–168h
Covers whole Europe. Hourly source runs; availability varies. 360h

WN3 / IFS / Mix: Hourly WN3, IFS and Mix show available forecasts from midnight today through the end of the day containing 72 hours from now, in the location’s timezone. Earlier hours from today are included when available; source coverage may leave the last day incomplete. Windyweek Mix averages their wind speed, temperature, cloud, humidity and pressure. Direction uses WN3 when the models differ by at least 120 degrees. Gusts use ECMWF, floored at Mix wind speed; without ECMWF they are estimated at 1.7 times wind speed. Total precipitation is averaged after an hourly 0.05 mm trace threshold. Missing or stale inputs use the available source. Snowfall is unavailable for Mix.

WeatherNext 3: Forecast at three-hour intervals, refreshed from the newest available hourly run. Main 00/06/12/18 UTC runs provide 15 days; interim runs refresh complete three-hour intervals within the first 48 hours from initialization and retain the latest available main-run forecast beyond that. Near-term and long-range portions update independently. Publication follows initialization by about 7–8 hours. Wind, temperature, pressure and cloud cover use ensemble means. Precipitation (mm/h) averages the three hourly ensemble medians (p50); this is not the median of the three-hour total. Rates below 0.05 mm/h are hidden, including rain icons. Showers predicted by a minority of members may be omitted. Gusts are estimated using ensemble-mean wind at 100 m, bounded between the surface wind speed and 1.7 times that speed. This is a proxy, not a prediction of short-duration surface gusts. Snowfall is unavailable.

Google Cloud Storage; © 2024-6 Google LLC, whose machine learning models were used to create the experimental data made available under the WeatherNext licence terms. This data is intended for experimental modelling only and is not intended, validated, or approved for real world use.

ECMWF IFS: Adapted from ECMWF forecast data, provided under CC BY 4.0.

UKMO: Met Office forecast data, British Crown copyright, provided under CC BY-SA 4.0.

Regional and temporal interpolation by Windyweek.