diff --git a/var/spack/repos/builtin/packages/fms/package.py b/var/spack/repos/builtin/packages/fms/package.py
new file mode 100644
index 0000000000..da31b5df46
--- /dev/null
+++ b/var/spack/repos/builtin/packages/fms/package.py
@@ -0,0 +1,40 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Fms(CMakePackage):
+    """GFDL's Flexible Modeling System (FMS) is a software environment
+    that supports the efficient development, construction, execution,
+    and scientific interpretation of atmospheric, oceanic, and climate
+    system models."""
+
+    homepage = "https://github.com/NOAA-GFDL/FMS"
+    url      = "https://github.com/NOAA-GFDL/FMS/archive/refs/tags/2021.02.01.tar.gz"
+
+    maintainers = ['kgerheiser', 'Hang-Lei-NOAA', 'edwardhartnett']
+
+    variant('64bit', default=True, description='64 bit?')
+    variant('gfs_phys', default=True, description='Use GFS Physics?')
+    variant('openmp', default=True, description='Use OpenMP?')
+
+    version('2021.03.01', sha256='1f70e2a57f0d01e80fceb9ca9ce9661f5c1565d0437ab67618c2c4dfea0da6e9')
+
+    depends_on('netcdf-c')
+    depends_on('netcdf-fortran')
+
+    def cmake_args(self):
+        args = [
+            self.define_from_variant('64BIT'),
+            self.define_from_variant('GFS_PHYS'),
+            self.define_from_variant('OPENMP')
+        ]
+
+        args.append(self.define('CMAKE_C_COMPILER', self.spec['mpi'].mpicc))
+        args.append(self.define('CMAKE_CXX_COMPILER', self.spec['mpi'].mpicxx))
+        args.append(self.define('CMAKE_Fortran_COMPILER', self.spec['mpi'].mpifc))
+
+        return args