Sure, but if you have someone that always claims there will be flooding, it doesn't have any bearing on whether it will flood next week just because the weather

Sure, but if you have someone that always claims there will be flooding, it doesn't have any bearing on whether it will flood next week just because the weather forecast says it will rain next week and floods usually happen after rain. Maybe it will, maybe it won't, but the rain has a lot more to do with that than the "always claim a flood is coming" person.