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A solid triangle beneath a precipitation mark.
Also known as: Showery precipitation marking, Convective precipitation symbol
A solid triangle under a precipitation symbol marks it as a shower — precipitation from convective cloud, starting and stopping abruptly. It is a statement about the cloud that produced it rather than about how hard it fell.
Marks precipitation as showery, drawn as a solid triangle beneath the symbol for whatever is falling.
Contexts: Navigation, Maps
Says the precipitation came from convective cloud, which is why showers begin and end sharply where frontal rain does not.
Contexts: Navigation, Maps
A solid triangle pointing upwards with a dot or star set directly above its apex.