I'm afriad I did not communicated well. Our plant has plan start - stop since last Friday. So, also did not know status of storm this week.
But based on your comment. I would say that it is doable to change shift assignment in emergency case such as line major breakdown, material shortage, etc. It depend on how fast plant can communicate to their people. I myself can do within 16 hr. I mean we can change shift assignment for next 16 hr. Such as we know status this morning, we can change shift assignment of next night shift.
Net net , I can not accept this your complementary.
By the way . To shorten your communication time to all manager with LINE, U can create group in there. Then, one message will be sent to everyone in group.