diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index aff539a..be81fd4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -69,7 +69,7 @@ jobs:
           path: ${{ env.pythonLocation }}
           key: test-${{ runner.os }}-${{ env.pythonLocation }}-${{ hashFiles('pyproject.toml', 'setup.*') }}
       - run: pip install ".[test]" pytest-cov pytest-xdist
-      - run: pytest -n auto --cov . --cov-report xml:coverage.xml
+      - run: pytest --cov . --cov-report xml:coverage.xml
       - run: coverage report -m
       - uses: codecov/codecov-action@main
         with:
diff --git a/stormevents/nhc/storms.py b/stormevents/nhc/storms.py
index 29e8896..91e1baf 100644
--- a/stormevents/nhc/storms.py
+++ b/stormevents/nhc/storms.py
@@ -66,9 +66,11 @@ def nhc_storms(year: int = None) -> pandas.DataFrame:
         header=0,
         names=columns,
         parse_dates=["start_date", "end_date"],
-        date_parser=lambda x: pandas.to_datetime(x.strip(), format="%Y%m%d%H")
-        if x.strip() != "9999999999"
-        else numpy.nan,
+        date_parser=lambda x: (
+            pandas.to_datetime(x.strip(), format="%Y%m%d%H")
+            if x.strip() != "9999999999"
+            else numpy.nan
+        ),
     )
 
     storms = storms.astype(
diff --git a/stormevents/stormevent.py b/stormevents/stormevent.py
index 28e561e..0395180 100644
--- a/stormevents/stormevent.py
+++ b/stormevents/stormevent.py
@@ -443,7 +443,7 @@ def coops_product_within_region(
         :param start_date: start date
         :param end_date: end date
         :param status: either ``current`` or ``historical``
-        :param datum: tidal datum
+        :param datum: tidal datum, one of ``STND``, ``MSL``, ``MHHW``, ``MHW``, ``MTL``, ``MLW``, ``MLLW``, ``NAVD``
         :param units: either ``metric`` or ``english``
         :param time_zone: time zone
         :param interval: time interval
@@ -467,6 +467,8 @@ def coops_product_within_region(
             f        (nos_id, t) object '0,0,0,0' '0,0,0,0' ... '0,0,0,0' '0,0,0,0'
             q        (nos_id, t) object 'v' 'v' 'v' 'v' 'v' 'v' ... 'p' 'p' 'p' 'p' 'p'
         """
+        if datum is None:
+            datum = "MSL"  # change the default from STND to MSL
 
         if not isinstance(region, BaseGeometry):
             region = shapely_shape(region)
diff --git a/tests/data/reference/test_usgs_flood_events/events.csv b/tests/data/reference/test_usgs_flood_events/events.csv
index f469311..8ba1c1d 100644
--- a/tests/data/reference/test_usgs_flood_events/events.csv
+++ b/tests/data/reference/test_usgs_flood_events/events.csv
@@ -1,7 +1,7 @@
 usgs_id,name,year,description,event_type,event_status,coordinator,instruments,last_updated,last_updated_by,start_date,end_date
 7,FEMA 2013 exercise,2013,Ardent/Sentry 2013 FEMA Exercise,HURRICANE,COMPLETED,36,[],,,2013-05-15 04:00:00,2013-05-23 04:00:00
-8,2005 Wilma,2005,"Category 3 in west FL. 
-Hurricane Wilma was the most intense tropical cyclone ever recorded in the Atlantic basin. Part of the record breaking 2005 Atlantic hurricane season.",HURRICANE,COMPLETED,515,[],2022-09-08 20:02:25.510152,1.0,2005-10-20 04:00:00,2005-10-31 05:00:00
+8,2005 Wilma,2005,"Category 3 in west FL.
+Hurricane Wilma was the most intense tropical cyclone ever recorded in the Atlantic basin. Part of the record breaking 2005 Atlantic hurricane season.",HURRICANE,COMPLETED,515,[],2023-12-19 20:47:51.435776,1.0,2005-10-20 04:00:00,2005-10-31 05:00:00
 18,2012 Isaac,2012,historical hurricane data loaded by the data archive team,HURRICANE,COMPLETED,36,[],2022-09-09 14:57:23.815290,2062.0,2012-08-27 04:00:00,2012-09-02 04:00:00
 19,2005 Rita,2005,historical hurricane data loaded by the data archive team,HURRICANE,COMPLETED,515,[],2022-09-08 20:10:38.533682,1.0,2005-09-23 04:00:00,2005-09-25 04:00:00
 23,2011 Irene,2011,historical hurricane data loaded by the data archive team,HURRICANE,COMPLETED,36,[],2022-09-09 15:04:03.637296,2062.0,2011-08-26 04:00:00,2011-08-29 04:00:00
diff --git a/tests/data/reference/test_usgs_flood_storms/storms.csv b/tests/data/reference/test_usgs_flood_storms/storms.csv
index 13ea59f..45944ad 100644
--- a/tests/data/reference/test_usgs_flood_storms/storms.csv
+++ b/tests/data/reference/test_usgs_flood_storms/storms.csv
@@ -1,6 +1,6 @@
 nhc_code,usgs_id,usgs_name,year,nhc_name,description,event_type,event_status,coordinator,instruments,last_updated,last_updated_by,start_date,end_date
-AL252005,8,2005 Wilma,2005,WILMA,"Category 3 in west FL. 
-Hurricane Wilma was the most intense tropical cyclone ever recorded in the Atlantic basin. Part of the record breaking 2005 Atlantic hurricane season.",HURRICANE,COMPLETED,515,[],2022-09-08 20:02:25.510152,1.0,2005-10-20 04:00:00,2005-10-31 05:00:00
+AL252005,8,2005 Wilma,2005,WILMA,"Category 3 in west FL.
+Hurricane Wilma was the most intense tropical cyclone ever recorded in the Atlantic basin. Part of the record breaking 2005 Atlantic hurricane season.",HURRICANE,COMPLETED,515,[],2023-12-19 20:47:51.435776,1.0,2005-10-20 04:00:00,2005-10-31 05:00:00
 AL092012,18,2012 Isaac,2012,ISAAC,historical hurricane data loaded by the data archive team,HURRICANE,COMPLETED,36,[],2022-09-09 14:57:23.815290,2062.0,2012-08-27 04:00:00,2012-09-02 04:00:00
 AL182005,19,2005 Rita,2005,RITA,historical hurricane data loaded by the data archive team,HURRICANE,COMPLETED,515,[],2022-09-08 20:10:38.533682,1.0,2005-09-23 04:00:00,2005-09-25 04:00:00
 AL092011,23,2011 Irene,2011,IRENE,historical hurricane data loaded by the data archive team,HURRICANE,COMPLETED,36,[],2022-09-09 15:04:03.637296,2062.0,2011-08-26 04:00:00,2011-08-29 04:00:00