B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Type 1249
Situational Awareness; Distraction
Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented
Weather; Human Factors
At the end of a long day which included a fuel stop; late hotel pickup; and weather; we landed on 19L in SFO and were cleared to hold short of 19R. We acknowledged the clearance. As we taxied off 19L my iPad shut down on its own as it had done the last 2 days. As I reached over to restart it; I noticed I lost location SA and our nose taxied onto 19R. Just then the FO said 'Wait. Where are we?' and he told the tower that we had started taxiing onto Runway 19R. The tower said 'Yes; continue crossing 19R and contact ground.' The rest of the taxi was uneventful.
This was originally supposed to be a nonstop flight to SFO; but due to severe weather in SFO and fuel requirements we had to stop for fuel. The day was further delayed at the fuel stop with a SFO flow control program. Upon arrival into SFO the weather was moderate rain; 3 - 4 nm visibility; and winds gusting over 40 knots. We landed on 19L and tower instructed us to make any right turn and hold short of 19R. We turned right on taxiway G and somehow neither of us saw the hold short line for 19R. Both of us realized the mistake at the same time; but at that point the nose was slightly in runway 19R. It was difficult to see ground markings with the wet surface; dark conditions; and weather. I immediately advised tower of our mistake and they told us to continue across 19R and contact ground. We taxied to the gate without further issue.
B737 flight crew reported landing on Runway 19L in SFO and accidently crossing the hold lines to 19R when the pilot flying became distracted.