4 times a day ad hoc weather forecasts for hourly deadlines of 0 to 36 hours or 42 hours are produced for the 36,000 French municipalities and some singular points + European cities of the AROME model
The upper air soundings are normally performed once a day to measure vertical profiles of air pressure, temperature, relative humidity and the wind vector. Helium filled balloons (TOTEX 600 g, 800 g)
