diff --git a/ci/cases/pr/C48_S2SWA_gefs.yaml b/ci/cases/pr/C48_S2SWA_gefs.yaml
index a924b416c3c..9cc230d35c2 100644
--- a/ci/cases/pr/C48_S2SWA_gefs.yaml
+++ b/ci/cases/pr/C48_S2SWA_gefs.yaml
@@ -9,7 +9,7 @@ arguments:
   resdetocean: 5.0
   resensatmos: 48
   nens: 2
-  gfs_cyc: 1
+  interval: 24
   start: cold
   comroot: {{ 'RUNTESTS' | getenv }}/COMROOT
   expdir: {{ 'RUNTESTS' | getenv }}/EXPDIR
diff --git a/ci/cases/pr/C48mx500_3DVarAOWCDA.yaml b/ci/cases/pr/C48mx500_3DVarAOWCDA.yaml
index e1b76f0db8b..2de5fea7fff 100644
--- a/ci/cases/pr/C48mx500_3DVarAOWCDA.yaml
+++ b/ci/cases/pr/C48mx500_3DVarAOWCDA.yaml
@@ -13,7 +13,7 @@ arguments:
   idate: 2021032412
   edate: 2021032418
   nens: 0
-  gfs_cyc: 0
+  interval: 0
   start: warm
   yaml: {{ HOMEgfs }}/ci/cases/yamls/soca_gfs_defaults_ci.yaml
 
diff --git a/ci/cases/pr/C96C48_hybatmDA.yaml b/ci/cases/pr/C96C48_hybatmDA.yaml
index 7617e39217e..b527903d697 100644
--- a/ci/cases/pr/C96C48_hybatmDA.yaml
+++ b/ci/cases/pr/C96C48_hybatmDA.yaml
@@ -14,6 +14,6 @@ arguments:
   idate: 2021122018
   edate: 2021122106
   nens: 2
-  gfs_cyc: 1
+  interval: 24
   start: cold
   yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_defaults_ci.yaml
diff --git a/ci/cases/pr/C96C48_hybatmaerosnowDA.yaml b/ci/cases/pr/C96C48_hybatmaerosnowDA.yaml
index 7387e55b24a..be5ad32238d 100644
--- a/ci/cases/pr/C96C48_hybatmaerosnowDA.yaml
+++ b/ci/cases/pr/C96C48_hybatmaerosnowDA.yaml
@@ -13,7 +13,7 @@ arguments:
   idate: 2021122012
   edate: 2021122100
   nens: 2
-  gfs_cyc: 1
+  interval: 24
   start: cold
   yaml: {{ HOMEgfs }}/ci/cases/yamls/atmaerosnowDA_defaults_ci.yaml
 
diff --git a/ci/cases/pr/C96C48_ufs_hybatmDA.yaml b/ci/cases/pr/C96C48_ufs_hybatmDA.yaml
index 0b5aa7b6acc..9ec12c46eea 100644
--- a/ci/cases/pr/C96C48_ufs_hybatmDA.yaml
+++ b/ci/cases/pr/C96C48_ufs_hybatmDA.yaml
@@ -13,7 +13,7 @@ arguments:
   idate: 2024022318
   edate: 2024022400
   nens: 2
-  gfs_cyc: 1
+  interval: 24
   start: warm
   yaml: {{ HOMEgfs }}/ci/cases/yamls/ufs_hybatmDA_defaults.ci.yaml
 
diff --git a/ci/cases/pr/C96_atm3DVar.yaml b/ci/cases/pr/C96_atm3DVar.yaml
index e9e6c2b31c1..fc09beeacf6 100644
--- a/ci/cases/pr/C96_atm3DVar.yaml
+++ b/ci/cases/pr/C96_atm3DVar.yaml
@@ -12,7 +12,7 @@ arguments:
   idate: 2021122018
   edate: 2021122106
   nens: 0
-  gfs_cyc: 1
+  interval: 24
   start: cold
   yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_defaults_ci.yaml
 
diff --git a/ci/cases/pr/C96_atm3DVar_extended.yaml b/ci/cases/pr/C96_atm3DVar_extended.yaml
index cdf69f04e04..8ab67a750ed 100644
--- a/ci/cases/pr/C96_atm3DVar_extended.yaml
+++ b/ci/cases/pr/C96_atm3DVar_extended.yaml
@@ -12,7 +12,7 @@ arguments:
   idate: 2021122018
   edate: 2021122118
   nens: 0
-  gfs_cyc: 4
+  interval: 6
   start: cold
   yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_extended_ci.yaml
 
diff --git a/ci/cases/weekly/C384C192_hybatmda.yaml b/ci/cases/weekly/C384C192_hybatmda.yaml
index 131ada95d55..a04ac84e828 100644
--- a/ci/cases/weekly/C384C192_hybatmda.yaml
+++ b/ci/cases/weekly/C384C192_hybatmda.yaml
@@ -14,6 +14,6 @@ arguments:
   idate: 2023040118
   edate: 2023040200
   nens: 2
-  gfs_cyc: 1
+  interval: 6
   start: cold
   yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_defaults_ci.yaml
diff --git a/ci/cases/weekly/C384_atm3DVar.yaml b/ci/cases/weekly/C384_atm3DVar.yaml
index 40487f3b47f..1a14059ab1a 100644
--- a/ci/cases/weekly/C384_atm3DVar.yaml
+++ b/ci/cases/weekly/C384_atm3DVar.yaml
@@ -14,6 +14,6 @@ arguments:
   idate: 2023040118
   edate: 2023040200
   nens: 0
-  gfs_cyc: 1
+  interval: 24
   start: cold
   yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_defaults_ci.yaml