4 times per day 08:00, 14:00, 20:00, and 00:00 UTC (Currently the 08:00 update is available on TWO)
Resolution 0.01° x 0.01° (Europe)
The model is initialized from data assimilation derived from the ARPEGE-IFS variational assimilation system and adapted to the AROME finer resolution.
Besides available data from ARPEGE, AROME is supplied, for instance, by precise data from the ARAMIS radar network (doppler wind and precipitation),
assimilated on an hourly basis.
Model information from the French National Centre for Meteorological Research