Rainfall return period from NOAA ATLAS 14

This resource demonstrates the steps for assessing post-storm rainfall severity for Hurricane Helene by comparing observed rainfall data to NOAA Atlas 14 datasets as part of the \"Precipitation Frequency and Storm Analysis in Operational Hydrology\" module. It includes a Python notebook that guides learners through examining observed rainfall, comparing it to historical data for various return periods, and evaluating the accuracy of HRRR forecasts. The activity focuses on rainfall from September 24–27, 2024. This resource was developed January 2025 as part of a CIROH HydroLearn Hackathon.