diff --git a/models/mpas_atm/model_mod.f90 b/models/mpas_atm/model_mod.f90
index 29ab31019..9057066e1 100644
--- a/models/mpas_atm/model_mod.f90
+++ b/models/mpas_atm/model_mod.f90
@@ -803,6 +803,8 @@ subroutine model_interpolate(state_handle, ens_size, location, qty, expected_obs
 
 ! HK @todo reject obs above a user specified pressure level
 
+! HK @todo 2M temp, 10M winds. #768
+
 select case (qty)
 
    case (QTY_U_WIND_COMPONENT)