I am completely confused as to why you seem to think that only ground personnel can safely help an airliner negotiate its way though severe weather. The NWS and the NOAA are only two of the invaluable resources that pilots and dispatchers rely upon to safely navigate around problems. But weather is so dynamic, the ultimate decision assure the safest track around thunderstorms has to be made by the pilots.
That being said, with the weather avoidance tools available aboard a modern airliner like the a320 and the fact it was a departure incident, I have to agree with Puma44. Delay departure.
Oh ... and to your question about airspace restrictions that currently exist in the Bosphorus, I am 8 years retired... so no.
You're attributing words to me that I did not express.
Please tell me where I said "only ground personnel can safely help an airliner negotiate its way though severe weather."
When I clearly stated "There is a line of communication from many sources that makes up the information you receive.".
The fact is that this airliner and two others were vectored into the path of the hail in istanbul, turkey.
Are you familiar with the policies of said airlines and ATC in istanbul, turkey?
You do know that "dry hail" (hail that is fully frozen with no liquid on it's surface) will not paint on weather radar?