The color red is sometimes described as a 'warning' or 'danger'.

Meteorology (from Greek: μετέωρον, meteoron, "high in the sky"; and λόγος, logos, "knowledge") is the interdisciplinary scientific study of the atmosphere that focuses on weather processes and forecasting. Meteorological phenomena are...

The Warning, a Nine Inch Nails song on their 2007 album, Year Zero.

Climatology is the study of climate, scientifically defined as weather conditions averaged over a period of time,[1] and is a branch of the atmospheric sciences. Basic knowledge of climate can be used within shorter term weather forecasting using analog...

Mount Warning, New South Wales, Australia

Warning (Black Sabbath song), a 1970 cover of a song by the Aynsley Dunbar Retaliation by Black Sabbath on their album Black Sabbath

"Warning," a 2001 song by Incubus on their album Morning View

The Warning (Queensrÿche album), a 1984 album by Queensrÿche

ALARM (Air Launched Anti-Radiation Missile) is a British anti-radiation missile designed primarily to destroy enemy radars for the purpose of Suppression of Enemy Air Defence (SEAD). It is used by the RAF and the Royal Saudi Air...

The Warning (Hot Chip album), a 2006 album by Hot Chip

Protection or protect, which generally means anything that helps to ward off some threat, may also refer...

A precautionary statement describing a potential hazard.

Warning (band), a UK based doom metal band.

A warning is a signal of danger. (see: warning system) The word warning may refer to:

Warning (Notorious B.I.G. song), a 1994 song by The Notorious B.I.G. on his album Ready to Die

WARN (91.5 FM) is a radio station licensed to Culpeper,...

In industry Warning is a Signal Word used to denote that failure to follow an indicated action could result in serious personal injury or harm. It must be contrasted with Danger in that; the use of Danger indicates that failure to follow the indicated action will result in personal injury or harm. (e.g., see Toxicity Class, [1])

Warning (Green Day song), a 2000 song by Green Day on their album of the same name, Warning

A red octagon is often used as a stop sign.

Chime and warning chime