IPA: //ˈsaʊθˌiːstər//
KK: /ˈsaʊθˌiːstər/
A strong wind or storm that comes from the southeast direction.
The southeaster caused significant damage to the coastal areas.
Southeaster → It is formed from "south" (from Old English *sūþ*, meaning the direction toward the point of the compass between east and west) and "-easter" (derived from "east", from Old English *ēast*, meaning the direction of the sunrise). The word "southeaster" refers to a direction that is toward the southeast.
Think of the direction 'south' combined with 'east' — a southeaster is simply a direction that points toward where the sun rises in the south.