(1964). Cicogna et al. (2000) studied the 1991–1997 hourly rainfall
measured by the OSMER–ARPA mesonet stations. More recently,
Manzato (2007) has studied the climatology of 6-hours (hereafter
6-h) accumulated rain in FVG (but only on the plains), in relation to
the values of sounding-derived instability indices. Hence, the first aim
of the present study is to provide an updated and spatially extended
climatology of the maximum 6-h rainfall in FVG.