Is the Banshee a Harbinger Spirit?

There's the crat, which is a harbinger spirit in the folklore of wales. The banshee of irish legend that wails under the window of a family member to por end that family member's death. So plenty of cultures have major flood, a storm and cataclysm myths, and in china is no exception. You may remember him from his key roll an, the myth of the surplus suns, or his part in the lunar myth of chinga andthe potion of immortality.