diff --git a/.travis.yml b/.travis.yml
index 3eda883e39..3bc4b45cbb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,5 @@ branches:
   - develop
   
 script:
-# do nothing
-cd ../
-python METplus/internal_tests/stand_alone/test_produtil_for_metplus.py -c METplus/internal_tests/stand_alone/produtil_for_METplus.conf
+  - pytest ./METplus/internal_tests/pytests/produtil/regress_test_produtil.py ./METplus/internal_tests/pytests/produtil/produtil_test.conf
 
diff --git a/internal_tests/test_point_stat_wrapper.py b/internal_tests/test_point_stat_wrapper.py
deleted file mode 100755
index 6c7acf6ad4..0000000000
--- a/internal_tests/test_point_stat_wrapper.py
+++ /dev/null
@@ -1,35 +0,0 @@
-#!/usr/bin/env python
-
-from __future__ import print_function
-
-import unittest
-import os
-import config_metplus
-from tc_pairs_wrapper import TcPairsWrapper
-import csv
-import re
-import shutil
-import met_util as util
-import produtil.setup
-import sys
-
-#
-# These are tests (not necessarily unit tests) for test-driven design for the
-# MET Point-Stat Wrapper, PointStatWrapper.py
-#
-
-
-class TestPointStatWrapper(unittest.TestCase):
-    def __init__(self, *args):
-        pass
-
-    def setUp(self):
-        pass
-
-    def test_read_use_case_config(self):
-        self.assertFalse()
-
-
-if __name__ == "__main__":
-    #unittest.main(exit=False)
-    unittest.main()
diff --git a/parm/use_cases/hwt/grid2grid_hwt_env.conf b/parm/use_cases/hwt/grid2grid_hwt_env.conf
new file mode 100644
index 0000000000..4e575d0111
--- /dev/null
+++ b/parm/use_cases/hwt/grid2grid_hwt_env.conf
@@ -0,0 +1,57 @@
+# HREF Mean vs. StageIV Gempak Configurations
+
+[config]
+LOOP_BY_INIT = false
+# Format of VALID_BEG and VALID_END
+VALID_TIME_FMT = %Y%m%d%H
+# Start time for MET+ run
+VALID_BEG = 2018040500
+# End time for MET+ run
+VALID_END = 2018040506
+# Increment between MET+ runs in seconds. Must be > 60
+VALID_INC = 3600
+
+# TODO: Add -- see Minna's description in another file
+LOOP_METHOD = times
+# List of applications to run
+PROCESS_LIST = GridStat
+
+# list of variables to compare
+FCST_VAR1_NAME = {ENV[FCST_VAR_IN]}
+FCST_VAR1_LEVELS = {ENV[FCST_LVL_IN]}
+
+# list of forecast leads to process
+LEAD_SEQ = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
+
+MODEL_TYPE = {ENV[MODEL_TYPE_IN]}
+OB_TYPE = {ENV[OB_TYPE_IN]}
+
+GRID_STAT_CONFIG = /home/christina.kalb/METplus/parm/met_config/GridStatConfig_hwt
+GRID_STAT_OUT_DIR = {ENV[OUT_DIR_IN]}
+
+# HRRRe Model Options:
+FCST_GRID_STAT_INPUT_DIR = {ENV[FCST_INPUT_DIR_IN]}
+
+FCST_REFC_0_THRESH = 25, 30, 35, 40, 45, 50
+#FCST_APCP_level_THRESH = 0.25, 0.5, 1, 2 
+#FCST_MXUPHL_level_THRESH = 50, 75, 100, 125
+
+FCST_NATIVE_DATA_TYPE = GRIB2
+FCST_MAX_FORECAST = {ENV[FCST_MAX_FCST_IN]}
+FCST_INIT_INTERVAL = 1
+FCST_IS_PROB = false
+
+# MRMS REFC Observation Data Parameters
+OBS_NATIVE_DATA_TYPE = GRIB2
+OBS_GRID_STAT_INPUT_DIR = {ENV[OBS_INPUT_DIR]}
+
+OBS_REFC_0_THRESH = 25, 30, 35, 40, 45, 50
+#OBS_APCP_level_THRESH = 0.25, 0.5, 1, 2 
+#OBS_MXUPHL_level_THRESH = 50, 75, 100, 125
+
+[filename_templates]
+# HRRRe
+FCST_GRID_STAT_INPUT_TEMPLATE = {ENV[FCST_INPUT_TEMPLATE_IN]}
+
+# MRMS REFC
+OBS_GRID_STAT_INPUT_TEMPLATE = {ENV[OBS_INPUT_TEMPLATE_IN]}
diff --git a/parm/use_cases/hwt/run_metplus_hwt.py b/parm/use_cases/hwt/run_metplus_hwt.py
new file mode 100644
index 0000000000..71ef4f9b5d
--- /dev/null
+++ b/parm/use_cases/hwt/run_metplus_hwt.py
@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+
+import os
+
+os.environ["FCST_INPUT_DIR_IN"] = "/raid/efp/se2018/ftp/gsd"
+os.environ["OBS_INPUT_DIR_IN"] = "/raid/efp/se2018/ftp/gsd"
+
+os.environ["FCST_INPUT_TEMPLATE_IN"] = "{init?fmt=%Y%m%d%H}/hrrre01_{init?fmt=%Y%m%d%H}f{lead?fmt=%HHH}.grib2"
+os.environ["OBS_INPUT_TEMPLATE_IN"] = "{valid?fmt=%m}/{valid?fmt=%d}/hrrre01_{valid?fmt=%Y%m%d%H}f000.grib2"
+
+os.environ["MODEL_TYPE_IN"] = "HRRRe01"
+os.environ["OB_TYPE_IN"] = "MRMS"
+
+os.environ["FCST_VAR_IN"] = "REFC"
+os.environ["FCST_LVL_IN"] = "L0"
+
+os.environ["FCST_MAX_FCST_IN"] = "48"
+
+os.environ["OUT_DIR_IN"] = "/home/christina.kalb/metout"
diff --git a/requirements.txt b/requirements.txt
index a736c502e1..da55f8e938 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,52 +1,24 @@
-asn1crypto==0.24.0
-astroid==1.6.3
+asn1crypto==0.22.0
 attrs==17.4.0
-backports-abc==0.5
-backports.functools-lru-cache==1.5
-certifi==2018.1.18
-cffi==1.11.5
+certifi==2017.7.27.1
+cffi==1.10.0
 chardet==3.0.4
-configparser==3.5.0
-cryptography==2.2.1
-cycler==0.10.0
+cryptography==2.0.3
 enum34==1.1.6
 funcsigs==1.0.2
-functools32==3.2.3.post2
-futures==3.2.0
 idna==2.6
 ipaddress==1.0.18
-isort==4.3.4
-kiwisolver==1.0.1
-lazy-object-proxy==1.3.1
-lxml==4.2.1
-matplotlib==2.2.2
-mccabe==0.6.1
 more-itertools==4.1.0
-numpy==1.14.2
-olefile==0.45.1
-OWSLib==0.16.0
-Pillow==5.1.0
 pluggy==0.6.0
-py==1.5.3
-pycodestyle==2.3.1
+py==1.5.2
+pycosat==0.6.3
 pycparser==2.18
-pyepsg==0.3.2
-pylint==1.8.4
-pyOpenSSL==17.5.0
-pyparsing==2.2.0
-pyproj==1.9.5.1
-pyshp==1.2.12
-PySocks==1.6.8
+pyOpenSSL==17.2.0
+PySocks==1.6.7
 pytest==3.5.0
 pytest-regtest==1.0.14
-python-dateutil==2.7.2
-pytz==2018.3
 requests==2.18.4
-scipy==1.0.1
-Shapely==1.6.4.post1
-singledispatch==3.4.0.3
-six==1.11.0
-subprocess32==3.2.7
-tornado==5.0.2
+ruamel-yaml==0.11.14
+six==1.10.0
 urllib3==1.22
-wrapt==1.10.11
+scipy==0.17.0