diff --git a/cset-workflow/flow.cylc b/cset-workflow/flow.cylc
index 11bb6646c..5b13ec779 100644
--- a/cset-workflow/flow.cylc
+++ b/cset-workflow/flow.cylc
@@ -4,46 +4,30 @@ title = CSET
 description = Workflow for running CSET.
 URL = https://metoffice.github.io/CSET
 
-[scheduler]
-    UTC mode = True
-
 [scheduling]
     runahead limit = P{{CSET_RUNAHEAD_LIMIT}}
-    initial cycle point = {{CSET_INITIAL_CYCLE_POINT}}
-    final cycle point = {{CSET_FINAL_CYCLE_POINT}}
+    initial cycle point = 1000-01-01
 
     [[graph]]
     # Only runs on the first cycle.
     R1/^ = """
-    build_conda => install_website_skeleton
     build_conda => install_local_cset
-    install_website_skeleton & install_local_cset => FETCH_DATA
-    """
-
-    # Only runs on the final cycle.
-    R1/$ = """
-    process_finish => COLLATE:succeed-all =>
-    finish_website => send_email => housekeeping_full
+    build_conda => install_website_skeleton
+    install_local_cset & install_website_skeleton => setup_complete
     """
 
-    # Runs every cycle to process the data in parallel.
-    {{CSET_CYCLE_PERIOD}} = """
-    install_website_skeleton[^] & install_local_cset[^] =>
-    FETCH_DATA:succeed-all => PARALLEL:succeed-all =>
-    process_finish => housekeeping_raw
-
-    # Intercycle dependence with this task ensures the collate step waits for
-    # the required data.
-    process_finish[-{{CSET_CYCLE_PERIOD}}] => process_finish
+    # Runs for every forecast initiation time to process the data in parallel.
+    {% for date in CSET_CASE_DATES %}
+    R1/{{date}} = """
+    setup_complete[^] => FETCH_DATA:succeed-all => PROCESS:finish-all => process_finish => housekeeping_raw
     """
+    {% endfor %}
 
-    {% if CSET_INCREMENTAL_OUTPUT %}
-    # Runs every so often to update output plots during runtime.
-    {{CSET_INCREMENTAL_OUTPUT_PERIOD}} = """
-    COLLATE[-{{CSET_INCREMENTAL_OUTPUT_PERIOD}}]:finish-all &
-    process_finish => COLLATE
+    # Only runs on the final cycle.
+    R1/$ = """
+    PROCESS:finish-all => finish_website => send_email
+    PROCESS:finish-all => housekeeping_full
     """
-    {% endif %}
 
 [runtime]
     [[root]]
@@ -75,15 +59,8 @@ URL = https://metoffice.github.io/CSET
         WEB_DIR = {{WEB_DIR}}
         COLORBAR_FILE = {{COLORBAR_FILE}}
 
-    [[PARALLEL]]
-    script = rose task-run -v --app-key=run_cset_recipe
-    [[[environment]]]
-        CSET_BAKE_MODE = parallel
-
-    [[COLLATE]]
+    [[PROCESS]]
     script = rose task-run -v --app-key=run_cset_recipe
-    [[[environment]]]
-        CSET_BAKE_MODE = collate
 
     [[FETCH_DATA]]
 
@@ -96,20 +73,13 @@ URL = https://metoffice.github.io/CSET
             ROSE_APP_OPT_CONF_KEYS = {{METPLUS_OPT_CONFIG_KEYS}}
             {% endif %}
 
-    # Dummy tasks needed for workflow scheduling.
-    [[process_finish]]
-    script = true
-    platform = localhost
-
-    [[dummy_collate]]
-    inherit = COLLATE
+    [[DUMMY_TASK]]
     script = true
     platform = localhost
+    execution time limit = PT1M
 
-    [[dummy_parallel]]
-    inherit = PARALLEL
-    script = true
-    platform = localhost
+    [[setup_complete]]
+    inherit = DUMMY_TASK
 
     [[build_conda]]
     # Create the conda environment if it does not yet exist.
diff --git a/cset-workflow/includes/plot_spatial_surface_model_field.cylc b/cset-workflow/includes/plot_spatial_surface_model_field.cylc
index 14cc5e51e..aa4bc11db 100644
--- a/cset-workflow/includes/plot_spatial_surface_model_field.cylc
+++ b/cset-workflow/includes/plot_spatial_surface_model_field.cylc
@@ -2,13 +2,7 @@
 {% for model_field in SURFACE_MODEL_FIELDS %}
 [runtime]
     [[generic_spatial_plot_time_series_{{model_field}}]]
-    inherit = PARALLEL
-        [[[environment]]]
-        CSET_RECIPE_NAME = "generic_surface_spatial_plot_sequence.yaml"
-        CSET_ADDOPTS = "--VARNAME={{model_field}}"
-
-    [[generic_spatial_plot_time_series_collation_{{model_field}}]]
-    inherit = COLLATE
+    inherit = PROCESS
         [[[environment]]]
         CSET_RECIPE_NAME = "generic_surface_spatial_plot_sequence.yaml"
         CSET_ADDOPTS = "--VARNAME={{model_field}}"
diff --git a/cset-workflow/meta/rose-meta.conf b/cset-workflow/meta/rose-meta.conf
index 03f431e75..f25dee067 100644
--- a/cset-workflow/meta/rose-meta.conf
+++ b/cset-workflow/meta/rose-meta.conf
@@ -214,58 +214,25 @@ compulsory=true
 # Data and Cycling
 ################################################################################
 
-[template variables=CSET_INITIAL_CYCLE_POINT]
+[template variables=CSET_CASE_DATES]
 ns=Data and Cycling
-description=Datetime of initial cycle point.
-help=This should be an ISO 8601 datetime string indicating when you want the
-    cycling component of CSET to begin. E.g. 2000-01-01T00:00Z. Ensure that it
-    is consistent with your data's starting validity time. If not then a warning
-    that cubes can not be loaded is raised.
-type=quoted
+description=List of datetimes of cases.
+help=This should be a python list of ISO 8601 datetime strings indicating the
+    forecast initiation time (AKA data time) of the data. E.g. 2000-01-01T00:00Z.
+    Ensure that it is consistent with your data's first validity time. If not
+    then a warning that cubes can not be loaded is raised.
+type=python_list
 compulsory=true
 sort-key=cycle1
 
-[template variables=CSET_FINAL_CYCLE_POINT]
-ns=Data and Cycling
-description=Datetime of final cycle point.
-help=This should be an ISO 8601 datetime string indicating when you want the
-    cycling component of CSET to finish. E.g. 2000-01-01T00:00Z
-type=quoted
-compulsory=true
-sort-key=cycle2
-
-[template variables=CSET_CYCLE_PERIOD]
-ns=Data and Cycling
-description=Period between each output.
-help=ISO 8601 duration for the length of the data in each cycle. For 3-hourly
-    data this would be PT3H. For hourly data choose PT1H.
-type=quoted
-compulsory=true
-
-[template variables=CSET_INCREMENTAL_OUTPUT]
+[template variables=CSET_CASE_PATHS]
 ns=Data and Cycling
-description=Write partial output before cycle end.
-help=Whether to write partial output plots before the end of the workflow.
-    Enabling this will slow the workflow, but allows for inspecting output before
-    the workflow is complete.
-
-    Only recommended for long running (multi-hour+) workflows.
-type=python_boolean
-trigger=template variables=CSET_INCREMENTAL_OUTPUT_PERIOD: True;
+description=Lists of data paths of cases.
+help=Python list of data locations for the case data as strings. The order should
+    match that of CSET_CASE_DATES.
+type=python lists
 compulsory=true
-sort-key=incr_out1
-
-[template variables=CSET_INCREMENTAL_OUTPUT_PERIOD]
-ns=Data and Cycling
-description=Period of updating output plots.
-help=ISO 8601 duration for the length of time between updating the output plots.
-    Smaller values will frequently update the output plots, but use more compute.
-
-    To avoid races, the total length of the cycles must be an integer multiple
-    of the CSET_CYCLE_PERIOD.
-type=quoted
-compulsory=true
-sort-key=incr_out2
+sort-key=cycle1
 
 # Input data settings.
 [template variables=FETCH_FCST_OPT_CONF]