diff --git a/preprocess_thresholds.py b/preprocess_thresholds.py
index f4b7e5963f47e0a6ffcf547f80a965b9bf432859..fc7fc7fef76a9a928c30d6d20846d555c0f2f771 100644
--- a/preprocess_thresholds.py
+++ b/preprocess_thresholds.py
@@ -15,16 +15,31 @@ def prepare_thresholds(data, thresholds):
     coeff_values[:, :, 1] = np.full(data.M01.shape, thresholds['11-12um_Cirrus_Test']['coeffs'][1])
     cmult_values = np.full(data.M01.shape, thresholds['11-12um_Cirrus_Test']['cmult'])
     adj_values = np.full(data.M01.shape, thresholds['11-12um_Cirrus_Test']['adj'])
-
+    if 'bt1' in list(thresholds['11-12um_Cirrus_Test']):
+        bt1 = np.full(data.M01.shape, thresholds['11-12um_Cirrus_Test']['bt1'])
+    else:
+        bt1 = np.full(data.M01.shape, -999)
+    if 'lat' in list(thresholds['11-12um_Cirrus_Test']):
+        lat = np.full(data.M01.shape, thresholds['11-12um_Cirrus_Test']['lat'])
+    else:
+        lat = np.full(data.M01.shape, -999)
     thr_dict = {'coeffs': (['number_of_lines', 'number_of_pixels', 'z'], coeff_values),
                 'cmult': (['number_of_lines', 'number_of_pixels'], cmult_values),
-                'adj': (['number_of_lines', 'number_of_pixels'], adj_values)
+                'adj': (['number_of_lines', 'number_of_pixels'], adj_values),
+                'bt1': (['number_of_lines', 'number_of_pixels'], bt1),
+                'lat': (['number_of_lines', 'number_of_pixels'], lat),
                 }
 
     return xr.Dataset(data_vars=thr_dict)
+# 3. Others
+# - Land_Night
+# - Polar_Night_Land
+# - Polar_Night_Snow
+# - Day_Snow
+# - Night_Snow
 
 
-def preproc(data, thresholds):
+def preproc(data, thresholds, scene):
     cosvza = np.cos(data.sensor_zenith * _dtr)
     schi = (1/cosvza).where(cosvza > 0, 99.0)
 
@@ -40,9 +55,27 @@ def preproc(data, thresholds):
 
     midpt = thr_xr.coeffs[:, :, 0].where((thr < 0.1) | (np.abs(schi-99) < 0.0001), thr)
     locut = midpt + (thr_xr.cmult * midpt)
-    hicut = midpt - thr_xr.adj
-    # this below is for the method 2 of computing hicut
-    # hicut = midpt - (thr_xr.adj * midpt)
+    if scene in ['Land_Day', 'Land_Day_Coast', 'Land_Day_Desert', 'Land_Day_Desert_Coast',
+                 'Ocean_Day', 'Ocean_Night', 'Polar_Ocean_Day', 'Polar_Ocean_Night']:
+        hicut = midpt - thr_xr.adj
+    elif scene in ['Polar_Day_Land', 'Polar_Day_Coast', 'Polar_Day_Desert',
+                   'Polar_Day_Desert_Coast', 'Polar_Day_Snow']:
+        hicut = midpt - (thr_xr.adj * midpt)
+    elif scene in ['Land_Night', 'Polar_Night_Land', 'Polar_Night_Snow', 'Day_Snow', 'Night_Snow']:
+        _coeffs = {'Land_Night': 0.3, 'Polar_Night_Land': 0.3, 'Polar_Night_Snow': 0.3,
+                   'Day_Snow': 0.0, 'Night_Snow': 0.3}
+        midpt = midpt - (_coeffs[scene] * locut)
+        if scene in ['Polar_Night_Land', 'Polar_Night_Snow', 'Night_Snow']:
+            hicut = (midpt - (0.2 * locut)).where(data.M15 < thr_xr.bt1, midpt - 1.25)
+        elif scene in ['Land_Night']:
+            hicut = -0.1 - np.power(90.0 - np.abs(data.latitude)/60, 4) * 1.15
+            hicut = hicut.where((data.M15 < thr_xr.bt1) & (data.latitude > thr_xr.lat), 1.25)
+        elif scene in ['Day_Snow']:
+            hicut = locut - (thr_xr.cmult * locut)
+        else:
+            print('Scene not recognized\n')
+    else:
+        print('Scene not recognized\n')
 
     thr_out = xr.DataArray(data=np.dstack((locut, midpt, hicut, np.ones(locut.shape), np.ones(locut.shape))),
                            dims=('number_of_lines', 'number_of_pixels', 'z'))
diff --git a/tests.py b/tests.py
index 0e72173494107cb541eca15e4ae89fe74ee01d03..8e79c3612125d50198ea085691704e5a4d0e65be 100644
--- a/tests.py
+++ b/tests.py
@@ -268,7 +268,7 @@ class CloudTests:
         thr_xr = xr.Dataset()
 
         if test_name == '11-12um_Cirrus_Test':
-            thr_xr['threshold'] = pt.preproc(self.data, self.thresholds[self.scene_name])
+            thr_xr['threshold'] = pt.preproc(self.data, self.thresholds[self.scene_name], self.scene_name)
             thr = np.ones((5,))  # This is only temporary to force the logic of the code
                                  # I need to find a better solution at some point
         elif test_name == 'Surface_Temperature_Test':
diff --git a/thresholds.mvcm.snpp.v0.0.1.yaml b/thresholds.mvcm.snpp.v0.0.1.yaml
index cf791411133277e06a8ce6ff4b83b0438f7d070c..1f495c88f6ab2f20361d0148d9c4d89654c6a216 100644
--- a/thresholds.mvcm.snpp.v0.0.1.yaml
+++ b/thresholds.mvcm.snpp.v0.0.1.yaml
@@ -20,6 +20,12 @@ Land_Day:
   b1bias_adj     : 0.94
 
 Land_Night:
+  11-12um_Cirrus_Test:
+    coeffs: [3.0, 1.0]
+    cmult: 0.0
+    adj: 0
+    bt1: 270.0  # WILL FIND A BETTER NAME AT SOME POINT, MAYBE
+    lat: 30.0
   nl4_12hi       : [15.0, 10.0, 5.00, 1.0, 1.0]
   CO2_High_Clouds_Test: [222.0, 224.0, 226.0, 1.0, 1.0]
   Water_Vapor_High_Clouds_Test: [215.0, 220.0, 225.0, 1.0, 1.0]
@@ -32,7 +38,6 @@ Land_Night:
   Surface_Temperature_Test_df2: [-0.5, 1.0]
   Surface_Temperature_Test_difference: [-0.2, 1.0, -0.5, 1.0]  # <- this merges the previous two arrays
   bt_diff_bounds : [1.0, -1.0]
-  11-12um_Cirrus_Test: [3.0, 1.0]
   Surface_Temperature_Test_1: 20.0  #   | might be worth figuring out if we can
   Surface_Temperature_Test_2: 12.0  #   | merge these three coefficients
   Surface_Temperature_Test_pfm: 1.0 # __|
@@ -175,9 +180,9 @@ Polar_Night_Land:
   Water_Vapor_High_Clouds_Test: [215.0, 220.0, 225.0, 1.0, 1.0]
   11-12um_Cirrus_Test:
     coeffs: [3.0, 1.0]
-    cmult: []  # I NEED TO WORK ON THIS
-    adj: []    # I NEED TO WORK ON THIS
-  pnlbt1         : 270.0
+    cmult: 0
+    adj: 0    # I NEED TO WORK ON THIS
+    bt1: 270.0
   pnlbt2         : 270.0
   Surface_Temperature_Test_df1: [0.0, 1.0]
   Surface_Temperature_Test_df2: [-0.5, 1.0]
@@ -199,8 +204,8 @@ Polar_Night_Land:
 Polar_Day_Coast:
   11-12um_Cirrus_Test:
     coeffs: [3.0, 1.0]
-    cmult: []  # I NEED TO WORK ON THIS
-    adj: []    # I NEED TO WORK ON THIS
+    cmult: 0  # I NEED TO WORK ON THIS
+    adj: 0    # I NEED TO WORK ON THIS
   pdl_ref3_tpw_t2 : -10.00
   11-4um_Oceanic_Stratus_Test: [-16.0, -14.0, -12.0, 1.0, 1.0]
   Water_Vapor_High_Clouds_Test: [215.0, 220.0, 225.0, 1.0, 1.0]
@@ -210,8 +215,8 @@ Polar_Day_Coast:
 Polar_Day_Desert:
   11-12um_Cirrus_Test:
     coeffs: [3.5, 1.0]
-    cmult: []  # I NEED TO WORK ON THIS
-    adj: []    # I NEED TO WORK ON THIS
+    cmult: 0  # I NEED TO WORK ON THIS
+    adj: 0    # I NEED TO WORK ON THIS
   pds11_4hi      : [2.00,  0.00, -2.00, 1.00]
   pds11_4lo      : [-22.0, -20.0, -18.0, 1.00]
   pds11_4_pfm    : 1.0
@@ -227,8 +232,8 @@ Polar_Day_Desert:
 Polar_Day_Desert_Coast:
   11-12um_Cirrus_Test:
     coeffs: [3.5, 1.0]
-    cmult: []  # I NEED TO WORK ON THIS
-    adj: []    # I NEED TO WORK ON THIS
+    cmult: 0  # I NEED TO WORK ON THIS
+    adj: 0    # I NEED TO WORK ON THIS
   pds11_4hi_c    :  [2.00,  0.00, -2.00, 1.00]
   pds11_4lo_c    : [-23.0, -21.0, -19.0, 1.00]
   pds11_4_c_pfm  : 1.0
@@ -241,8 +246,8 @@ Polar_Day_Desert_Coast:
 Polar_Day_Snow:
   11-12um_Cirrus_Test:
     coeffs: [3.0, 1.0]
-    cmult: []  # I NEED TO WORK ON THIS
-    adj: []    # I NEED TO WORK ON THIS
+    cmult: 0  # I NEED TO WORK ON THIS
+    adj: 0    # I NEED TO WORK ON THIS
   dps_ref3_tpw   : 0.75
   dpsbt1         : 230.0
   Water_Vapor_High_Clouds_Test: [215.0, 220.0, 225.0, 1.0, 1.0]
@@ -259,8 +264,9 @@ Polar_Day_Snow:
 Polar_Night_Snow:
   11-12um_Cirrus_Test:
     coeffs: [3.0, 1.0]
-    cmult: []  # I NEED TO WORK ON THIS
-    adj: []    # I NEED TO WORK ON THIS
+    cmult: 0
+    adj: 0    # I NEED TO WORK ON THIS
+    bt1: 270.0
   pn_4_12l       : [4.50, 4.00, 3.50, 1.0]
   pn_4_12h       : [2.50, 2.00, 1.50, 1.0]
   pn_4_12m1      : [4.00,  2.00, 0.500, 1.0]
@@ -292,7 +298,6 @@ Polar_Night_Snow:
   pn_11_4bm2     : [0.00,  0.00, 0.00, 0.0]
   pn_11_4bm3     : [0.00,  0.00, 0.00, 0.0]
   pn11_12adj     : 0.8
-  pnbt1          : 270.0
   pnbt2          : 270.0
   pnbt3          : 230.0
   pntpw          : 0.2
@@ -349,8 +354,8 @@ Polar_Ocean_Night:
 Day_Snow:
   11-12um_Cirrus_Test:
     coeffs: [3.0, 1.0]
-    cmult: []  # I NEED TO WORK ON THIS
-    adj: []    # I NEED TO WORK ON THIS
+    cmult: 0.3
+    adj: 0    # I NEED TO WORK ON THIS
   ds_ref3_tpw    : 0.75
   CO2_High_Clouds_Test: [222.0, 224.0, 226.0, 1.0, 1.0]
   Water_Vapor_High_Clouds_Test: [215.0, 220.0, 225.0, 1.0, 1.0]
@@ -363,9 +368,9 @@ Day_Snow:
 Night_Snow:
   11-12um_Cirrus_Test:
     coeffs: [3.0, 1.0]
-    cmult: []  # I NEED TO WORK ON THIS
-    adj: []    # I NEED TO WORK ON THIS
-  nsbt1          : 270.0
+    cmult: 0
+    adj: 0    # I NEED TO WORK ON THIS
+    bt1: 270.0
   nsbt2          : 270.0
   nsbt3          : 230.0
   ns11_4lo       : [0.70,  0.60,  0.50,  1.0, 1.0]