weather signal

noun

1. a visual signal, as a light or flag, indicating a weather forecast.

Example Sentences

There is a weather-signal station at the summit, one of the most important posts in the country.

From Project Gutenberg

If you are near one of the weather signal stations, daily bulletins will be sent to camp upon request; also the weather map.

From Project Gutenberg

When I attempted to corroborate your weather signal, you turned your back and walked off.

From Project Gutenberg