HEC-HMS Tutorials and Guides Gridded Boundary Condition Data Current: Downloading, Importing, and Processing Gridded Data PDF Download PDF Download page Downloading, Importing, and Processing Gridded Data. Current page Include child pages All pages Downloading, Importing, and Processing Gridded Data Last Modified: 2025-05-23 10:36:44.848 Introduction to Downloading, Importing, and Processing Gridded Data Task 1: Importing Gridded Data Task 2: Extracting time-series data from grids Task 3: Normalizing Precipitation Data Task 4: Creating an observed SWE time-series ×