chimney leak black liquid
It is absolutely normal for some water getting into a chimney with driven wind. Even with a wood stove that has a wind driven deflector on the stack those get some water but not as much as a conventional brick chimney. My dad had a chimney sweep company and we installed wood stoves in the 70’s like crazy. We also had to have training for inspections and it is not unusual for a driving rain or snow to enter the chimney and be noticed as a leak especially if the chimney is not hot from use.