Time clauses for the future tense do not take future forms – in other words, these time clauses should not include will.
I will start when I am ready. (NOT I will start when I will be ready.)
Wait by the bus stop until I come back. (NOT Wait by the bus stop until I will come back.)
OK, that's easy. But I'm confused with this sentence:
The pilot announced that the plane would not be taking off unless the storm (moves / moved) off.
What is correct? Or both are possible?