We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
A graded colour scale from yellow to red for expected impact.
Also known as: Amber warning, Red weather warning
National weather services grade warnings by colour, typically yellow, amber and red. The grading combines likelihood with impact rather than measuring severity alone, so a moderate event in a vulnerable place can outrank a severe one in an empty one.
Grade weather warnings on a colour scale, most commonly yellow, amber and red for increasing seriousness.
Contexts: Navigation, Maps
Combine the likelihood of an event with its expected impact rather than measuring the weather alone, so the level depends on what is in the way.
Contexts: Navigation, Maps
Differ between national services in both their colours and their thresholds, so a level issued in one country does not translate directly into another.
Contexts: Navigation, Maps
A map outline filled with a flat warning colour, with a printed level name in letters beside it.