Date: 201909
Local time of day: 1201-1800
Location: ZZZ.Airport, US
Weather elements / visibility: Thunderstorm
Light: Daylight
Aircraft: Regional Jet 200 ER/LR (CRJ200)
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Landing
Airspace: Class C ZZZ
ATC / advisory: Tower ZZZ
Reporter organization: Air Carrier
Reporter function: Pilot Flying; First Officer
Reporter qualification: Flight Crew Air Transport Pilot (ATP)
Human factors: Time Pressure; Situational Awareness
Second reporter function: Captain; Pilot Not Flying
Anomaly: Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance; Inflight Event / Encounter Fuel Issue; Inflight Event / Encounter Weather / Turbulence
Detector: Person Flight Crew
When detected: Pre-flight
Contributing factors: Procedure; Human Factors; Company Policy; Weather
Primary problem: Company Policy

Narrative: We had a long route filed for weather avoidance; when we took off the weather was good at our destination and going direct was an alternative option. This was leg 4 of our duty day and we were in our extension after having dealt with delays and long flights due to weather earlier in the day with a very early show time. We did not account for going direct meaning we have a lot of extra fuel and potentially being overweight on landing. We had issues getting ATIS on frequency to brief the approach; so we had spent extra time getting a digital METAR from the ACARS; as well as having approach read us the local ATIS. At this point we were caught up with everything on the briefing. There were thunderstorms surrounding the area on the arrival; included with moderate turbulence. We had a straight in approach on an RNAV so the flight time at this point was less than 20 minutes. We got the briefs done and checklists read but did not realize 48;000 lbs was our landing weight. Once we got vectored on the approach we were in complete IMC conditions focused on our altitudes and a stable approach; as well as a strong crosswind correction. We landed with no event; smooth landing; and exited the runway with plenty of runway available. Our gate was not available to us so we had to remote park. While we waited the Captain had noticed the TOLD cards and saw 48;000 lbs card and realized that was overweight landing. The Captain looked at Zero Fuel Weight as well as current fuel on board and realized they landed 1;000 lbs overweight. At this point the Captain looked up procedure and saw a write up was necessary. We wrote up an overweight landing and talked to Maintenance on the phone before handing it over to the next crew.Weather avoidance with a short flight was the biggest contributing factor. Both pilots were busy getting everything complete for the landing and when reading the checklist both missed the landing data at 48;000 lbs with a lot of other ATC and weather interruptions in the way. Our duty day was very long with 4 legs that day; fatigue could have played an issue as we had to take an extension just to complete that flight; dealing with that same thunderstorm on arrival in the previous leg. On initial descent we encounter moderate turbulence that caught both pilots off guard; where the attention was solely on stable flight and that immediately was followed by being on the approach and getting configured for the FAF and stable approach criteria for a full approach procedure. Better attention on reading checklists in stressful events; taking the time to not be interrupted but also operating the aircraft safely.


Second narrative: [Narrative contained no additional information.]


Synopsis: CRJ-200 flight crew reported an overweight landing.