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

  • $\begingroup$ 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

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


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.