diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1e1a53da58..3b7cebf694 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,7 @@ enable_testing()
 #    User options      #
 ########################
 
-set(BUILD_TYPE_VALUES Debug Release)
+set(BUILD_TYPE_VALUES Debug Release RelWithDebInfo)
 if (CMAKE_CONFIGURATION_TYPES) # multi-config generators like MSVC
     set(CMAKE_CONFIGURATION_TYPES ${BUILD_TYPE_VALUES} CACHE TYPE INTERNAL FORCE)
 else()
@@ -157,9 +157,11 @@ endif()
 
 set(CMAKE_C_FLAGS_DEBUG "${C_debug} ${C_checked}")
 set(CMAKE_C_FLAGS_RELEASE "${C_optimized}")
+set(CMAKE_C_FLAGS_RELWITHDEBINFO "${C_optimized} ${C_debug}")
 set(CMAKE_C_FLAGS "${C_other}")
 set(CMAKE_Fortran_FLAGS_DEBUG "${Fortran_debug} ${Fortran_checked}")
 set(CMAKE_Fortran_FLAGS_RELEASE "${Fortran_optimized}")
+set(CMAKE_Fortran_FLAGS_RELWITHDEBINFO "${Fortran_optimized} ${Fortran_debug}")
 set(CMAKE_Fortran_FLAGS "${Fortran_preprocess} ${Fortran_io} ${Fortran_other}")
 
 if (OPTIMIZE_C)
@@ -169,6 +171,8 @@ endif()
 if (ENABLE_RUNTIME_CHECKS)
     set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${C_checked}")
     set(CMAKE_Fortran_FLAGS_RELEASE "${CMAKE_Fortran_FLAGS_RELEASE} ${Fortran_checked}")
+    set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} ${C_checked}")
+    set(CMAKE_Fortran_FLAGS_RELWITHDEBINFO "${CMAKE_Fortran_FLAGS_RELWITHDEBINFO} ${Fortran_checked}")
 endif()
 
 if (SAVE_TEMPS)
diff --git a/doc/cmake/INSTALL.md b/doc/cmake/INSTALL.md
index 14827cbf47..dc0da3cc92 100644
--- a/doc/cmake/INSTALL.md
+++ b/doc/cmake/INSTALL.md
@@ -76,7 +76,7 @@ By default WRF-CMake will compile in `serial` mode with `basic` nesting option.
 |----|-------|-------|-----------|
 |`MODE`|`serial`, `dmpar`, `smpar`, `dm_sm`|`serial`|Serial/parallel modes|
 |`NESTING`|`none`, `basic`, `vortex`, `following`|`basic`|Domain Options|
-|`CMAKE_BUILD_TYPE`|`Release`, `Debug`|`Release`|Whether to optimise/build with debug flags.|
+|`CMAKE_BUILD_TYPE`|`Release`, `Debug`, `RelWithDebInfo`|`Release`|Whether to optimise/build with debug flags.|
 |`ENABLE_RUNTIME_CHECKS`|`ON`, `OFF`|`OFF`|Whether to enable compiler runtime checks in Release mode.|
 |`ENABLE_GRIB1`|`ON`, `OFF`|`ON`|Enable/Disable GRIB 1 support.|
 |`ENABLE_GRIB2`|`ON`, `OFF`|`ON`|Enable/Disable GRIB 2 support.|
@@ -108,7 +108,7 @@ where `<install_directory>` is the directory where to install WPS and `<wrf_cmak
 
 |Name|Options|Default|Description|
 |----|-------|-------|-----------|
-|`CMAKE_BUILD_TYPE`|`Release`, `Debug`|`Release`|Whether to optimise/build with debug flags.|
+|`CMAKE_BUILD_TYPE`|`Release`, `Debug`, `RelWithDebInfo`|`Release`|Whether to optimise/build with debug flags.|
 |`ENABLE_RUNTIME_CHECKS`|`ON`, `OFF`|`OFF`|Whether to enable compiler runtime checks in Release mode.|
 |`ENABLE_GRIB1`|`ON`, `OFF`|`OFF`|Enable/Disable GRIB 1 support (`ungrib` always has GRIB 1).|
 |`ENABLE_GRIB2_PNG`|`ON`, `OFF`|`ON`|Enable/Disable GRIB 2 PNG support.|