Yes that would be telling if we knew when that typhoon hit tacloban.
It seems there are some clues though. Rodney Barcenas the elders says: "we are preparing for the typhoon because the news said we need to prepare. So I text everybody so I text everybody every elder in every congregation I text they need to evacuate to the separate place." Seems his story is cut off at this point in the video.
It seems here that he was texting them to find a safe place for shelter. The question is - was that advice from the branch? I agree though that the branches "preparedness" was not even as good as the general advice from the government.