diff --git a/easybuild/easyconfigs/t/time/time-1.9-GCCcore-10.2.0.eb b/easybuild/easyconfigs/t/time/time-1.9-GCCcore-10.2.0.eb
new file mode 100644
index 00000000000..c8fda7a1c70
--- /dev/null
+++ b/easybuild/easyconfigs/t/time/time-1.9-GCCcore-10.2.0.eb
@@ -0,0 +1,27 @@
+easyblock = 'ConfigureMake'
+
+name = 'time'
+version = '1.9'
+
+homepage = 'https://www.gnu.org/software/time/'
+description = """The `time' command runs another program, then displays information about the resources used by that
+ program, collected by the system while the program was running."""
+
+toolchain = {'name': 'GCCcore', 'version': '10.2.0'}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCE_TAR_GZ]
+checksums = ['fbacf0c81e62429df3e33bda4cee38756604f18e01d977338e23306a3e3b521e']
+
+builddependencies = [('binutils', '2.35')]
+
+postinstallcmds = ["ln -s %(installdir)s/bin/%(name)s %(installdir)s/bin/gtime"]
+
+sanity_check_paths = {
+    'files': ['bin/gtime', 'bin/%(name)s'],
+    'dirs': [],
+}
+
+sanity_check_commands = ["time echo test"]
+
+moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1-foss-2020b-dmpar.eb b/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1-foss-2020b-dmpar.eb
new file mode 100644
index 00000000000..9fea5e70362
--- /dev/null
+++ b/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1-foss-2020b-dmpar.eb
@@ -0,0 +1,51 @@
+name = 'WRF'
+version = '3.9.1.1'
+buildtype = "dmpar"
+versionsuffix = '-%s' % buildtype
+
+homepage = 'https://www.mmm.ucar.edu/weather-research-and-forecasting-model'
+description = """The Weather Research and Forecasting (WRF) Model is a next-generation mesoscale
+ numerical weather prediction system designed to serve both operational forecasting and atmospheric
+ research needs."""
+
+toolchain = {'name': 'foss', 'version': '2020b'}
+toolchainopts = {'opt': False}  # don't use agressive optimization, stick to -O2
+
+source_urls = [
+    'https://www2.mmm.ucar.edu/wrf/src/',
+    'https://www.mmm.ucar.edu/wrf/src/',
+]
+sources = ['%(name)sV%(version)s.TAR.gz']
+patches = [
+    'WRF_parallel_build_fix.patch',
+    'WRF-%(version)s_netCDF-Fortran_separate_path.patch',
+    'WRF-%(version)s_GCC-10-allow-argument-mismatch.patch',
+    'WRF-3.9.1.1_libtirpc.patch',
+]
+checksums = [
+    'e2c503c1b5adc2d3409b39d37df29d60188ff1de8c870eca15197a86d3538299',  # WRFV3.9.1.1.TAR.gz
+    'f93bb6dbb8b52d72f816e2f9a6815bffd536afeca8511552ec5abc4253a59346',  # WRF_parallel_build_fix.patch
+    # WRF-3.9.1.1_netCDF-Fortran_separate_path.patch
+    '49ae0eb4c5bacd3b932be14ccb9ac2d28cbd70828b633d9f13860c92d92b1eb7',
+    # WRF-3.9.1.1_GCC-10-allow-argument-mismatch.patch
+    '3cc8a43838c7d821d02a7c64acbc08b730691af5ab6bc5f6ba0afd6356c4af01',
+    '9a8547d6c68b0f318f74063b690c5c8cfcd3437ebebe837dbd1d4a2dc1ad2427',  # WRF-3.9.1.1_libtirpc.patch
+]
+
+# csh is used by WRF install scripts
+builddependencies = [
+    ('tcsh', '6.22.03'),
+    ('time', '1.9'),
+]
+
+dependencies = [
+    ('libtirpc', '1.3.1'),
+    ('JasPer', '2.0.24'),
+    ('netCDF', '4.7.4'),
+    ('netCDF-Fortran', '4.5.3'),
+]
+
+# limit parallel build to 20
+maxparallel = 20
+
+moduleclass = 'geo'
diff --git a/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1-intel-2020b-dmpar.eb b/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1-intel-2020b-dmpar.eb
new file mode 100644
index 00000000000..44a07366630
--- /dev/null
+++ b/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1-intel-2020b-dmpar.eb
@@ -0,0 +1,51 @@
+name = 'WRF'
+version = '3.9.1.1'
+buildtype = "dmpar"
+versionsuffix = '-%s' % buildtype
+
+homepage = 'https://www.mmm.ucar.edu/weather-research-and-forecasting-model'
+description = """The Weather Research and Forecasting (WRF) Model is a next-generation mesoscale
+ numerical weather prediction system designed to serve both operational forecasting and atmospheric
+ research needs."""
+
+toolchain = {'name': 'intel', 'version': '2020b'}
+toolchainopts = {'opt': False}  # don't use agressive optimization, stick to -O2
+
+source_urls = [
+    'https://www2.mmm.ucar.edu/wrf/src/',
+    'https://www.mmm.ucar.edu/wrf/src/',
+]
+sources = ['%(name)sV%(version)s.TAR.gz']
+patches = [
+    'WRF_parallel_build_fix.patch',
+    'WRF-%(version)s_netCDF-Fortran_separate_path.patch',
+    'WRF-%(version)s_GCC-10-allow-argument-mismatch.patch',
+    'WRF-3.9.1.1_libtirpc.patch',
+]
+checksums = [
+    'e2c503c1b5adc2d3409b39d37df29d60188ff1de8c870eca15197a86d3538299',  # WRFV3.9.1.1.TAR.gz
+    'f93bb6dbb8b52d72f816e2f9a6815bffd536afeca8511552ec5abc4253a59346',  # WRF_parallel_build_fix.patch
+    # WRF-3.9.1.1_netCDF-Fortran_separate_path.patch
+    '49ae0eb4c5bacd3b932be14ccb9ac2d28cbd70828b633d9f13860c92d92b1eb7',
+    # WRF-3.9.1.1_GCC-10-allow-argument-mismatch.patch
+    '3cc8a43838c7d821d02a7c64acbc08b730691af5ab6bc5f6ba0afd6356c4af01',
+    '9a8547d6c68b0f318f74063b690c5c8cfcd3437ebebe837dbd1d4a2dc1ad2427',  # WRF-3.9.1.1_libtirpc.patch
+]
+
+# csh is used by WRF install scripts
+builddependencies = [
+    ('tcsh', '6.22.03'),
+    ('time', '1.9'),
+]
+
+dependencies = [
+    ('libtirpc', '1.3.1'),
+    ('JasPer', '2.0.24'),
+    ('netCDF', '4.7.4'),
+    ('netCDF-Fortran', '4.5.3'),
+]
+
+# limit parallel build to 20
+maxparallel = 20
+
+moduleclass = 'geo'
diff --git a/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1_GCC-10-allow-argument-mismatch.patch b/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1_GCC-10-allow-argument-mismatch.patch
new file mode 100644
index 00000000000..2b183de4ce1
--- /dev/null
+++ b/easybuild/easyconfigs/w/WRF/WRF-3.9.1.1_GCC-10-allow-argument-mismatch.patch
@@ -0,0 +1,49 @@
+see https://github.com/wrf-model/WRF/issues/1250 and https://github.com/wrf-model/WRF/pull/1251
+
+--- WRFV3/arch/configure_new.defaults.orig	2020-11-08 10:19:34.486759000 +0100
++++ WRFV3/arch/configure_new.defaults	2020-11-08 10:20:04.994969609 +0100
+@@ -71,7 +71,7 @@
+ FCNOOPT         =       -O0
+ FCDEBUG         =       # -g $(FCNOOPT)  # -fbacktrace -ggdb -fcheck=bounds,do,mem,pointer -ffpe-trap=invalid,zero,overflow
+ FORMAT_FIXED    =       -ffixed-form
+-FORMAT_FREE     =       -ffree-form -ffree-line-length-none
++FORMAT_FREE     =       -ffree-form -ffree-line-length-none -fallow-argument-mismatch -fallow-invalid-boz
+ FCSUFFIX        =       
+ BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
+ FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+@@ -783,7 +783,7 @@
+ FCNOOPT		=       -O0
+ FCDEBUG         =       # -g $(FCNOOPT) # -ggdb -fbacktrace -fcheck=bounds,do,mem,pointer -ffpe-trap=invalid,zero,overflow
+ FORMAT_FIXED    =       -ffixed-form
+-FORMAT_FREE     =       -ffree-form -ffree-line-length-none
++FORMAT_FREE     =       -ffree-form -ffree-line-length-none -fallow-argument-mismatch -fallow-invalid-boz
+ FCSUFFIX        =       
+ BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
+ FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+@@ -1004,7 +1004,7 @@
+ FCNOOPT         =       -O0
+ FCDEBUG         =       # -g $(FCNOOPT) # -fbacktrace -ggdb -fcheck=bounds,do,mem,pointer -ffpe-trap=invalid,zero,overflow
+ FORMAT_FIXED    =       -ffixed-form
+-FORMAT_FREE     =       -ffree-form -ffree-line-length-none
++FORMAT_FREE     =       -ffree-form -ffree-line-length-none -fallow-argument-mismatch -fallow-invalid-boz
+ FCSUFFIX        =       
+ BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
+ FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+@@ -1047,7 +1047,7 @@
+ FCNOOPT         =       -O0
+ FCDEBUG         =       # -g $(FCNOOPT) # -fbacktrace -ggdb -fcheck=bounds,do,mem,pointer -ffpe-trap=invalid,zero,overflow
+ FORMAT_FIXED    =       -ffixed-form
+-FORMAT_FREE     =       -ffree-form -ffree-line-length-none
++FORMAT_FREE     =       -ffree-form -ffree-line-length-none -fallow-argument-mismatch -fallow-invalid-boz
+ FCSUFFIX        =       
+ BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
+ FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+@@ -1771,7 +1771,7 @@
+ FCNOOPT         =       -O0
+ FCDEBUG         =       # -g $(FCNOOPT) # -fbacktrace -ggdb -fcheck=bounds,do,mem,pointer -ffpe-trap=invalid,zero,overflow
+ FORMAT_FIXED    =       -ffixed-form
+-FORMAT_FREE     =       -ffree-form -ffree-line-length-none
++FORMAT_FREE     =       -ffree-form -ffree-line-length-none -fallow-argument-mismatch -fallow-invalid-boz
+ FCSUFFIX        =       
+ BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
+ FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)