Rischio elevato fino a domattina di locali grandinate di grosse dimensioni con tempeste di vento e possibili trombe d'aria !
Storm Forecast
Valid: Sat 17 Jul 2010 06:00 to Sun 18 Jul 2010 06:00 UTC
Issued: Sat 17 Jul 2010 04:43
A level 2 was issued for northern Italy mainly for severe convective wind gusts, and isolated large hail and excessive rain.
...northern Italy...
Large CAPE values >1600 J/kg already present in 00Z soundings, going over 2000 J/kg in GFS during the afternoon, and dry upper layers pose a threat of severe wind gusts. Large hail is also possible, once shear increases to marginally moderate values from the west. More importantly, and the reason for level 2, is the trough coming out of France passing the region during evening and night, setting off widespread storms with primary chance of severe wind gusts. Large hail and excessive precipitation can also occur.
Massima prudenza ! IMHO indicazioni insufficienti dai siti meteo anche regionali: i pericoli si devono sempre segnalare, se poi non succede nulla tanto meglio ma bisogna essere informati !
