The word sudden wasn’t in the article. The word sudden I used in a replying sentence, referring to the unuasal occurrence in combination of the
acronymic sighting assuming the Russians seem to have at the same day as the airplane disappeared .

It’s just a weird coincidence that indeed doesn’t correlate to the fact that cyclones can happen at “Sudden ” moments in that time period and place
where the search party was initiated.

Although in my view weather changes and UFO’S seem to go together in some cases where they occur.

Not saying this event had a correlated effect on that particular situation. ..