On this page, we list some further details on specific cases:
Italy floods & Storm Hans (April 2025)
Precipitation associated with Storm Hans in the current climate, as simulated with HCLIM43-AROME at 2.5km resolution. Below we show some snapshots from the output of the driving RCM (12km, RACMO). Clearly visible is the large meander of the jet, and the narrow region of cold air, leading eventually to the cutoff low. Over the Mediterranean the cold air leads to strong latent heat fluxes, and some of that evaporating moisture may have ended up in the precipitation event. Past and future climates follow at a later stage. See more info here: linkedin post
wind 300hPa
wind 850hPa
temp 500hPa
surface latent heat flux