diff --git a/model/src/wav_comp_nuopc.F90 b/model/src/wav_comp_nuopc.F90
index 4280b3b14..f6b98f297 100644
--- a/model/src/wav_comp_nuopc.F90
+++ b/model/src/wav_comp_nuopc.F90
@@ -56,6 +56,7 @@ module wav_comp_nuopc
   use wmmdatmd              , only : nmpscr
   use w3updtmd              , only : w3uini
   use w3adatmd              , only : flcold, fliwnd
+  use shr_is_restart_fh_mod , only : init_is_restart_fh, is_restart_fh, write_restartfh
 #endif
   use constants             , only : is_esmf_component
 
@@ -1219,6 +1220,10 @@ subroutine ModelAdvance(gcomp, rc)
     else
       rstwr = .false.
     endif
+#ifndef W3_CESMCOUPLED
+    write_restartfh = is_restart_fh(clock)
+    if (write_restartfh) rstwr = .true.
+#endif
 
     ! Determine if time to write ww3 history files
     call ESMF_ClockGetAlarm(clock, alarmname='alarm_history', alarm=alarm, rc=rc)
@@ -1295,7 +1300,7 @@ subroutine ModelSetRunClock(gcomp, rc)
     integer                  :: history_ymd    ! History date (YYYYMMDD)
     type(ESMF_ALARM)         :: history_alarm
     character(len=128)       :: name
-    integer                  :: alarmcount
+    integer                  :: alarmcount, dt_cpl
     character(len=*),parameter :: subname=trim(modName)//':(ModelSetRunClock) '
 
     !-------------------------------------------------------------------------------
@@ -1363,6 +1368,12 @@ subroutine ModelSetRunClock(gcomp, rc)
 
         call ESMF_AlarmSet(restart_alarm, clock=mclock, rc=rc)
         if (ChkErr(rc,__LINE__,u_FILE_u)) return
+#ifndef W3_CESMCOUPLED
+        call ESMF_TimeIntervalGet( dtimestep, s=dt_cpl, rc=rc )
+        if (ChkErr(rc,__LINE__,u_FILE_u)) return
+        call init_is_restart_fh(mcurrTime, dt_cpl, root_task)
+#endif
+
       end if
 
       !----------------