forewarn about

forewarn someone about something

 and forewarn someone of something
to warn someone about someone or something. They forewarned us of your strange behavior. Didn't we forewarn you about Max's problem?
See also: forewarn
References in periodicals archive ?
Addressing a ceremony held here Thursday, Shakil Qadir said that United Nations Development Fund (UNDP) would provide 25 million dollars in case of natural catastrophe whereas Japan government would technically assist besides installing system that would forewarn about possible floods.