storm signal

1. 1.

   a signal announcing the approach of a storm (particularly a storm of marked violence)

   Broadersignal

   Narrowerstorm cone

Questions about storm signal

What does storm signal mean?

storm signal means "a signal announcing the approach of a storm (particularly a storm of marked violence)".

Is storm signal a common word?

storm signal is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.