In-flight replanning
hi there.
Please I need some help here.
So yesterday we were flying this ultra long flight ( +12h) and 4 hrs from destination we realize we are quite tight on fuel and destination TAF is horrendous in terms of visibility. As we prepare a plan B we notice the favourite alternate ( less distance ) has less than ideal conditions, as well visibility forecasted to be marginal. So different strategies are discussed and one of them is,...what if we proceed to this alternate , again, not very promising TEMPO wx conditions although METAR is still acceptable. My question here is, if we decide to fly to this planned alternate ( from dispatch) directly, at some point, without trying the original destination, is this considered inflight replannig therefore, all considerations for new alternates and planning minima apply? I think the answer is yes, but... it was the spark of a very vivid discuasion we had in the cockpit me and 2 other colleagues.
Thanks in advance