A321
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Deviation - Altitude Excursion From Assigned Altitude; Inflight Event / Encounter Weather / Turbulence
Flight Crew Diverted; Flight Crew Regained Aircraft Control; Flight Crew Executed Go Around / Missed Approach
Human Factors; Weather
Just after joining the localizer to Runway XXR; we encountered wind shear with a gain of 30-40 knots followed by significant loss of airspeed taking the aircraft to Alpha floor. We were at 4000 feet when the event occurred; [it] resulted in a loss of 1500-2000 feet of altitude. Captain preformed wind shear escape and we flew out of it.
On final approach into ZZZ at 4;000 feet flap 2 approximately 180 kts; we hit severe wind shear. Airspeed increased by approximately 50 kts above target followed by a decrease of airspeed of approximately 30 kts below target. This all happened within a matter of seconds. We were unable to maintain altitude. I remember losing 2000 feet and gaining 1;000 feet above desired altitude. The ride was extremely violent. We diverted to ZZZ1 with no further events.
A321 flight crew reported severe wind shear during approach resulted in a diversion.