Abstract

PILOT: Seamless ensemble precipitation forecast members up to 6 hours ahead, per 5 minutes, over the Netherlands. The forecast contains 72 time steps: +5 minutes to +360 minutes. Forecasted is an ensemble of 20 members of precipitation intensity, on a grid of 1x1 km. The forecast is made with an experimental KNMI implementation of pySTEPS (https://pysteps.github.io). The forecast is initiated with the KNMI 5-minute real-time precipitation accumulation product (RTCOR-5m) and the HARMONIE-AROME Cy43 ensemble forecast.

NOTE: As this data product is currently in a pilot phase, please be aware that it may undergo changes or be discontinued at any time without prior notice. This pilot will last until January 31st 2026 at the latest.

The KNMI real-time precipitation accumulation product can be found here: https://dataplatform.knmi.nl/dataset/nl-rdr-data-rtcor-5m-1-0

Supplemental information

More information on the KNMI Open Source radar repository: https://gitlab.com/KNMI-OSS/radar/datasets; pySTEPS see https://pysteps.readthedocs.io/en/stable


Metadata

Dataset name seamless_precipitation_ensemble_forecast_members
Dataset version 1.0
Status onGoing
Update frequency continual
File formats NetCDF
Spatial representation type grid
License https://creativecommons.org/licenses/by/4.0/
North bound latitude 55.97
East bound longitude 10.86
South bound latitude 48.9
West bound longitude 0.0
Dataset edition 1
Dataset manager KNMI Radarteam
Maintainer KNMI Data Services
Publication date 2025-03-01
Reference system identifier PROJ.4+proj=stere +lat_0=90 +lon_0=0 +lat_ts=60 +a=6378137 +b=6356752 +x_0=0 +y_0=0 +units=km
Dataset start time 2025-03-01
Dataset end time 9999-12-31
Identifier urn:xkdc:ds:nl.knmi::seamless_precipitation_ensemble_forecast_members/1.0/
Lineage statement Ensemble precipitation forecast generated by pySTEPS, based on KNMI's 5-minute realtime quantitative precipitation estimate (QPE) product and the HARMONIE-AROME Cy43 ensemble forecast.
Use limitation No use limitations
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