Available via extranet, this service provides probabilistic forecasts of winter phenomena (storms, extreme winds, freezing fog, sticking snow, etc) and is aimed at electricity transmission system or rail transmission system operators. The aim is to help them anticipate the risk of frost and snow deposits on cables, cable breaks or pylon falls during tempestuous events and extreme winds.
This service indicates the timing, location and intensity of expected phenomena, allowing the company to make network operating decisions and mobilise human and material resources to intervene at the right time, in the right place and in an efficient manner to restore systems and limit the duration of damage.
This prediction is based on the Arome Ensemble Forecast and incorporates state-of-the-art business algorithms. The system operator can thus monitor and assess the risk associated with winter phenomena using surveillance maps, probabilistic scenarios (optimistic, median or pessimistic) or threshold exceedance probabilities, and wind gust return duration maps.