Deep low pressure systems generated a series of surges of between 0.5m to 1m and brought gale force south-westerly winds and waves of over five metres to our coastline.
O ganlyniad i systemau pwysedd isel dyfn, cafwyd cyfres o ymchwyddau morol rhwng 0.5m ac 1m a gwyntoedd cryfion o’r de-orllewin gyda thonnau dros 5 metr o uchder ar ein harfordir.