Foreword
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This User's Guide describes the Advanced Research WRF (ARW) Version 4 modeling system. This document is continuously updated as the WRF model is further developed. Please post feedback to the `WRF & MPAS-A Support Forum`_.

| This document is complementary to the `WRF-ARW Tech Note`_, which describes the equations, numerics, boundary conditions, nesting, etc. in greater detail.

| For updates to specific versions of the WRF code, see the `WRF GitHub Release`_ page.

| All versions of this document can be found here_.  


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:underline:`Contributors to This Guide`

Wei Wang, Cindy Bruyère, Michael Duda, Jimy Dudhia, Dave Gill, Michael Kavulich, Kelly Werner, Ming Chen, Hui-Chuan Lin, John Michalakes, Syed Rizvi, Xin Zhang, Judith Berner, Domingo Munoz-Esparza, Brian Reen, Soyoung Ha and Kate Fossell

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:underline:`Contributors to the WRF-Fire Chapter`

Jonathan D. Beezley, Janice L. Coen, and Jan Mandel
 
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:underline:`Special Acknowledgment`

We gratefully acknowledge the late Dr. Thomas T. Warner for his years of research, development, instruction, leadership, and motivation in the field of NWP modeling.

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.. _`WRF & MPAS-A Support Forum`: https://forum.mmm.ucar.edu/
.. _`WRF-ARW Tech Note`: https://opensky.ucar.edu/islandora/object/opensky:2898
.. _`WRF GitHub Release`: https://github.com/wrf-model/WRF/releases
.. _here: https://github.com/wrf-model/WRF/releases

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