storm signal

noun

1. a visual signal, as a flag, giving advance notice of a heavy storm, used especially along coastal areas.
2. storm warning ( def 2 ).

Word History and Origins

Origin of storm signal¹

First recorded in 1860–65

Example Sentences

Survivors claimed Billy had “a way of knowing what the weather will be that, for accuracy, puts to shame all the storm signals and information of the weather bureaus,” the P-I reported.

From Seattle Times

Koinu arrived a month after southern China and Hong Kong were lashed by Typhoon Saola, which triggered Hong Kong’s highest storm signal on a scale of 11.

From Seattle Times

It comes a month after southern China and Hong Kong were lashed by Typhoon Saola, which triggered Hong Kong’s highest storm signal on a scale of 11.

From Seattle Times

Hong Kong imposed its highest hurricane storm signal 10 on Friday night, lowering it to 8 by Saturday morning.

From Reuters

Markets in Hong Kong halted trade for the day as its observatory put in place storm signal No. 8 for Talim, while all court hearings in the city were adjourned.

From Reuters