Words related to tornadoes and associated phenomenona in romanian?

i'm working on a project about tornadoes in romania and i can't find translations for important words related to tornado formation such as rear flank downdraft, squall lines, hook echo and others.. does anyone have any idea where i can find a dictionary or something to help me with this? or a site, something...i dunno. my last resort is to contact the people from our national weather institute, but i was hoping i can find a way till then. i'm not even sure romanian translation for these words exist yet, but..maybe there is someone out there who can help. anyone. thanks