Clearly it wasn't the weather any more than it was an accident and storm that sank the Moscva, and it wasn't just Moscow, the the flyovers were cancelled in other cities too. There must have been some I&W that there was a MANPADS threat.
As for the missing "Z" symbols, maybe they have figured out that much of the world sees it as a "neo swastika".
“There must have been some I&W that there was a MANPADS threat.”
New article says Putin was afraid of his own aircraft dropping bombs on him!!! Friendly-fire Assassination!