B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 6166
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter Wake Vortex Encounter
Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance
Environment - Non Weather Related; Weather
On departure from La Guardia on the La Guardia 9 departure New York Departure queried if we had started our turn to heading 040. We were already in the process of making a left turn from heading 180 degrees to heading 040. I notified ATC that we had winds of 328/28 increasing our groundspeed and radius of turn. Adding to turn radius was that we momentarily shallowed our bank angle upon a slight wake turbulence encounter on a preceding A321 which was climbing at a greater rate.ATC asked us to tighten the turn and the Captain as the flying pilot complied.
B737 First Officer reported a track deviation departing LGA; citing a tailwind and a wake vortex encounter as contributing.