diff --git a/bld/namelist_files/namelist_defaults_cam.xml b/bld/namelist_files/namelist_defaults_cam.xml
index 3322e9bb72..d10f5196cc 100644
--- a/bld/namelist_files/namelist_defaults_cam.xml
+++ b/bld/namelist_files/namelist_defaults_cam.xml
@@ -2082,12 +2082,19 @@
 <clubb_lambda0_stability_coef                     > 0.04    </clubb_lambda0_stability_coef>
 <clubb_lmin_coef                                  > 0.1     </clubb_lmin_coef>
 <clubb_l_brunt_vaisala_freq_moist                 > .false. </clubb_l_brunt_vaisala_freq_moist>
+<clubb_l_C2_cloud_frac                            > .false. </clubb_l_C2_cloud_frac>
+<clubb_l_calc_thlp2_rad                           > .true.  </clubb_l_calc_thlp2_rad>
+<clubb_l_calc_w_corr                              > .false. </clubb_l_calc_w_corr>
 <clubb_l_call_pdf_closure_twice                   > .true.  </clubb_l_call_pdf_closure_twice>
+<clubb_l_const_Nc_in_cloud                        > .false. </clubb_l_const_Nc_in_cloud>
 <clubb_l_damp_wp2_using_em                        > .false. </clubb_l_damp_wp2_using_em>
 <clubb_l_damp_wp3_Skw_squared                     > .false. </clubb_l_damp_wp3_Skw_squared>
+<clubb_l_diagnose_correlations                    > .false. </clubb_l_diagnose_correlations>
+<clubb_l_diffuse_rtm_and_thlm                     > .false. </clubb_l_diffuse_rtm_and_thlm>
 <clubb_l_do_expldiff_rtm_thlm                     > .false. </clubb_l_do_expldiff_rtm_thlm>
 <clubb_l_e3sm_config                              > .false. </clubb_l_e3sm_config>
 <clubb_l_enable_relaxed_clipping                  > .false. </clubb_l_enable_relaxed_clipping>
+<clubb_l_fix_w_chi_eta_correlations               > .true.  </clubb_l_fix_w_chi_eta_correlations>
 <clubb_l_godunov_upwind_wpxp_ta                   > .false. </clubb_l_godunov_upwind_wpxp_ta>
 <clubb_l_godunov_upwind_xpyp_ta                   > .false. </clubb_l_godunov_upwind_xpyp_ta>
 <clubb_l_intr_sfc_flux_smooth                     > .false. </clubb_l_intr_sfc_flux_smooth>
@@ -2104,16 +2111,22 @@
 <clubb_l_partial_upwind_wp3                       > .false. </clubb_l_partial_upwind_wp3>
 <clubb_l_predict_upwp_vpwp                        > .false. </clubb_l_predict_upwp_vpwp>
 <clubb_l_predict_upwp_vpwp phys="cam_dev"         > .true.  </clubb_l_predict_upwp_vpwp>
+<clubb_l_prescribed_avg_deltaz                    > .false. </clubb_l_prescribed_avg_deltaz>
 <clubb_l_rcm_supersat_adj                         > .false. </clubb_l_rcm_supersat_adj>
+<clubb_l_rtm_nudge                                > .false. </clubb_l_rtm_nudge>
 <clubb_l_smooth_Heaviside_tau_wpxp                > .false. </clubb_l_smooth_Heaviside_tau_wpxp>
 <clubb_l_standard_term_ta                         > .false. </clubb_l_standard_term_ta>
 <clubb_l_stability_correct_tau_zm                 > .true.  </clubb_l_stability_correct_tau_zm>
-<clubb_l_trapezoidal_rule_zm                      > .true. </clubb_l_trapezoidal_rule_zm>
-<clubb_l_trapezoidal_rule_zt                      > .true. </clubb_l_trapezoidal_rule_zt>
+<clubb_l_stability_correct_Kh_N2_zm               > .false. </clubb_l_stability_correct_Kh_N2_zm>
+<clubb_l_tke_aniso                                > .true.  </clubb_l_tke_aniso>
+<clubb_l_trapezoidal_rule_zm                      > .true.  </clubb_l_trapezoidal_rule_zm>
+<clubb_l_trapezoidal_rule_zt                      > .true.  </clubb_l_trapezoidal_rule_zt>
+<clubb_l_upwind_xm_ma                             > .true.  </clubb_l_upwind_xm_ma>
 <clubb_l_upwind_xpyp_ta                           > .true.  </clubb_l_upwind_xpyp_ta>
 <clubb_l_use_C11_Richardson                       > .false. </clubb_l_use_C11_Richardson>
 <clubb_l_use_C7_Richardson                        > .false. </clubb_l_use_C7_Richardson>
 <clubb_l_use_cloud_cover                          > .true.  </clubb_l_use_cloud_cover>
+<clubb_l_use_precip_frac                          > .true.  </clubb_l_use_precip_frac>
 <clubb_l_use_shear_Richardson                     > .false. </clubb_l_use_shear_Richardson>
 <clubb_l_use_thvm_in_bv_freq                      > .false. </clubb_l_use_thvm_in_bv_freq>
 <clubb_l_use_tke_in_wp2_wp3_K_dfsn                > .false. </clubb_l_use_tke_in_wp2_wp3_K_dfsn>
diff --git a/bld/namelist_files/namelist_definition.xml b/bld/namelist_files/namelist_definition.xml
index 16ae7abbd3..50d811ce68 100644
--- a/bld/namelist_files/namelist_definition.xml
+++ b/bld/namelist_files/namelist_definition.xml
@@ -4022,11 +4022,12 @@ each Gaussian.
 </entry>
 
 <entry id="clubb_iiPDF_type" type="integer" category="pblrad"
-       group="clubb_params_nl" valid_values="" >
-Selected option for the two-component normal
-(double Gaussian) PDF type to use for the w, rt,
-and theta-l (or w, chi, and eta) portion of
-CLUBB's multivariate, two-component PDF.
+       group="clubb_params_nl" valid_values="1,2,3,4,5,6,7" >
+Selected option for the two-component normal (double Gaussian) PDF type to use for the w, rt,
+and theta-l (or w, chi, and eta) portion of CLUBB's multivariate, two-component PDF.
+iiPDF_ADG1 = 1 (ADG1 PDF), iiPDF_ADG2 = 2 (ADG2 PDF), iiPDF_3D_Luhar = 3 (3D Luhar PDF),
+iiPDF_new = 4 (new PDF), iiPDF_TSDADG = 5 (TSDADG PDF), iiPDF_LY93 = 6 (Lewellen and Yoh (1993)),
+iiPDF_new_hybrid = 7 (new hybrid PDF)
 </entry>
 
 <entry id="clubb_ipdf_call_placement" type="integer" category="pblrad"
@@ -4242,7 +4243,7 @@ two grid level types.
 
 <entry id="clubb_l_rtm_nudge" type="logical" category="pblrad"
        group="clubb_params_nl" valid_values="" >
-For rtm nudging
+Turn on (true) and off (false) rtm nudging.
 </entry>
 
 <entry id="clubb_l_smooth_Heaviside_tau_wpxp" type="logical" category="pblrad"
@@ -4259,7 +4260,7 @@ advance_wp2_wp3_module.F90 and in advance_xp2_xpyp_module.F90.
 
 <entry id="clubb_l_stability_correct_Kh_N2_zm" type="logical" category="pblrad"
        group="clubb_params_nl" valid_values="" >
-Divides Kh_N2_zm by a stability factor
+Whether or not we want CLUBB to apply a stability correction Kh_N2_zm.
 </entry>
 
 <entry id="clubb_l_stability_correct_tau_zm" type="logical" category="pblrad"
@@ -4271,8 +4272,9 @@ Brunt-Vaisala frequency is large.
 
 <entry id="clubb_l_tke_aniso" type="logical" category="pblrad"
        group="clubb_params_nl" valid_values="" >
-For anisotropic turbulent kinetic energy, i.e.
-TKE = 1/2 (u'^2 + v'^2 + w'^2)
+Use anisotropic turbulent kinetic energy in the CLUBB higher order closure, i.e.
+calculate TKE = 1/2 (u'^2 + v'^2 + w'^2). This improves the simulation of complex
+turbulence but at a greater cost than running without.
 </entry>
 
 <entry id="clubb_l_trapezoidal_rule_zm" type="logical" category="pblrad"
@@ -4293,9 +4295,8 @@ adjustment to PDF fields calculated on thermodynamic vertical grid levels.
 
 <entry id="clubb_l_upwind_xm_ma" type="logical" category="pblrad"
        group="clubb_params_nl" valid_values="" >
-This flag determines whether we want to use an upwind
-differencing approximation rather than a centered
-differencing for turbulent or mean advection terms. It
+This flag determines whether we want to use an upwind differencing approximation
+rather than a centered differencing for turbulent or mean advection terms. It
 affects rtm, thlm, sclrm, um and vm.
 </entry>
 
@@ -4310,7 +4311,7 @@ is used.
 
 <entry id="clubb_l_uv_nudge" type="logical" category="pblrad"
        group="clubb_params_nl" valid_values="" >
-For wind speed nudging.
+Turn on (true) or off (false) uv wind speed nudging.
 </entry>
 
 <entry id="clubb_l_use_C11_Richardson" type="logical" category="pblrad"