This is a matter of storms being able to supercharge themselves due to global warming. Don’t let people reframe this against the NWS. It is like Hurricane Erick the other week that jumped to category 3 out of nowhere, storms are being rapidly supercharged. This flood broke all sorts of records, so to phrase it as the previous commenter did is unfair.. In the near future, their ability to even predict as well as they did will degrade though, at which point you will hear more of ‘they never knew what they were talking about anyways.’ This lays the groundwork for that.