Dod o hyd i Ragolwg
Hoff Leoliadau (—)
Nodweddion a Dadansoddiad
Mae'r cynnwys hwn ar gael yn Saesneg yn unig.
Tornado threat for USA
2014 has been a quiet season so far for tornadoes but there is a risk of some developing in the Lower Mississippi Valley in the coming days.
Flight MH370 search hampered by bad weather
BBC Weather's Susan Powell takes a look at the recent weather conditions that have hampered the search for the missing plane.