Gulfstream V / G500 / G550
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 4
Situational Awareness
Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Provided Assistance; Flight Crew Took Evasive Action
Weather
Aircraft reported a buildup they needed to deviate around that was not depicted on the radar scope. They also requested lower [altitude]. I gave him they deviation and called the previous sector to get control for descent. Aircraft X was at [Flight Level] 140 and I gave him pilot discretion descent to [Flight Level] 110 which was the bottom of my altitude limit. When he reached 110 he requested lower while still on a deviation; so I called ALB Approach and pointed [out] Aircraft X descending to 090. Upon reaching 090 he requested lower [altitude] and I called ALB Approach back and they gave me control so I descended him to [Flight Level] 070 and when he got to [Flight Level] 070 he said 'I need lower now' and that he was getting severe turbulence [Flight Level] 075-060. No injuries were reported when asked. He was handed off to Catskill Sector and they descended him to 0440.
ZBW Center Controller reported an aircraft that needed to deviate for weather and immediate descent for turbulence.