Welcome to the Unified Forecast System (UFS) Short-Range Weather (SRW) Application Practical Session Guide

September 20-24, 2021


Session 1:  Set up and run a 2 day simulation with significant severe weather across the Contiguous United States (CONUS) from 15-16 June 2019.  This forecast uses a predefined Rapid Refresh Forecast System (RRFS) CONUS grid with 25 km resolution, the FV3_GFS_v15p2 Common Community Physics Package (CCPP) physics suite, and FV3GFS initial and lateral boundary conditions. 

Session 2:  Describes how to change the predefined grid resolution, and then progresses to changing the physics suite and the external models for generating initial conditions (ICs) and lateral boundary conditions (LBCs). Users will learn how to define a custom regional Extended Schmidt Gnomonic (ESG) grid.

Session 3:  Explores how to customize the Unified Post Processor (UPP) output by adding/removing fields/levels. Describes how to change a physics scheme in an existing Suite Definition File (SDF).

Throughout this training, please note, blocks of text follow these conventions:

  • Black background with white text is the command you should run.
  • Gray background with black text is the output you should see when you run the command.
  • Yellow background contains important/helpful tips.
  • Blue background with black text is additional information.

You will use the NCAR HPC computer, Cheyenne, to download, compile, and run the SRW App.  Click on "Session 1" to get started.