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During the today (24/08/16) launch of Ariane 5, Stéphane Israël (chairman & CEO) tells that all conditions are good, including a green green weather.

Is it a shortcut for no wind, no rain, or something like that ?

Link to the youtube video

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  • $\begingroup$ Guessing, but in the US we say weather is GO, forecast GO, meaning OK right now, and predicted to be OK (meet all launch weather criteria) for the launch window. $\endgroup$ – Organic Marble Aug 25 '16 at 0:00
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Yes. During Arianespace launch broadcasts, they sometimes show a list of launch conditions. This is a list of about 15 items shown in red or green. If all are green, the launch is proceeded with. An item shown in red means a delay or scrub.
This is similar to the voice poll NASA uses (where each department head says 'Go' or 'No go' a few minutes before launch).

Example from a Vega launch using a similar system:
Vega launch poll

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