forewarning

the act or an instance of telling beforehand of danger or risk heeded the forewarning to stay off the ice until the town had checked to see if it was thick enough Synonyms admonishment, admonition, alarm (also alarum), alert, caution, warning, heads-up, noticeRelated Words auguring, augury, forecasting, foretelling, predicting, prediction, premonition, presaging, prognosticating, prophecy (also prophesy), prophesying; apprising, informing, notification, notifying, tip-off; advice, counsel, guidance, recommendation, suggestion, tip; announcement, declaration