B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 151; Flight Crew Total 19000; Flight Crew Type 2179
Ground Event / Encounter Other / Unknown
Aircraft Aircraft Damaged; General Maintenance Action
Weather
After Block in we left the parking brake set and the electric hydraulic B pump on. Parking check was complete.  The Cabin door was open and passengers were deplaning. The Captain (CA) and I were packing our bags for an hour turn with a plane change. A gust of wind pushed the plane several feet from the jetway. The CA got up to assist the Fight Attendants. I attempted to call ops; nobody answered. I then called Maintenance and advised them we would need their assistance and ask them to contact OPS. I then called ramp to advise them the wind had moved us off the gate and to remind inbound aircraft to keep brakes set (ours remained set after parking and was still set).  Maintenance was able to bring the jetway back to the aircraft so the passengers could finish deplaning.  The Captain made a logbook entry due to cabin door damage.
Ramp was covered with a thin layer of ice/ snow. Winds were strong and gusty from the NW. The lead in line was visible. After Block-in engines shut down chocks in signal received from marshaller; I left the parking brake set and hydraulics pressurized. Jet-bridge was pulled to door 1L; and canopy extended. As passengers were disembarking; a gust of wind hit the aircraft displacing the nose approximately 2-3 feet right away from the jet-bridge. I left the flight deck to see that no one had been injured. There was a 2-3 ft. gap between the aircraft and jet-bridge and the canopy was engaged with door 1L. The inside hinge was bent to the point that the door would not be able to be moved. Maintenance was notified; and after some time they were able to move the canopy and reposition the jet-bridge against the aircraft once again. All passengers and crew disembarked safely.
After passenger deplaning begins at the gate; a B737 flight crew experiences a strong wind gust that moves the aircraft two to three feet from the jetway; damaging the door. The ramp had a thin layer of ice and snow.