diff --git a/modules/icing/util.py b/modules/icing/util.py
index eed139e1645cb2ef8cc215dc8b6b6f47e1ae8580..7fe9b4db527a61ed680dc316923fafbf4098e614 100644
--- a/modules/icing/util.py
+++ b/modules/icing/util.py
@@ -1477,7 +1477,7 @@ def run_icing_predict_image_fcn(clvrx_dir='/Users/tomrink/data/clavrx/RadC/', ou
 
 def run_icing_predict_image_1x1(clvrx_dir='/Users/tomrink/data/clavrx/RadC/', output_dir=homedir,
                                 day_model_path=model_path_day, night_model_path=model_path_night,
-                                prob_thresh=0.5, satellite='GOES16', domain='CONUS', day_night='AUTO',
+                                prob_thresh=0.52, satellite='GOES16', domain='CONUS', day_night='AUTO',
                                 l1b_andor_l2='BOTH', use_flight_altitude=True, use_max_cth_level=False,
                                 extent=[-105, -70, 15, 50],
                                 pirep_file='/Users/tomrink/data/pirep/pireps_202109200000_202109232359.csv',
@@ -1583,11 +1583,12 @@ def run_icing_predict_image_1x1(clvrx_dir='/Users/tomrink/data/clavrx/RadC/', ou
             fd_probs[np.invert(day_idxs)] = probs[np.invert(day_idxs)]
 
         fd_probs[clr_idxs] = -1.0
+        fd_probs = np.where(fd_probs < prob_thresh, np.nan, fd_probs)
 
         max_prob = fd_probs.reshape((num_lines, num_elems))
 
         make_icing_image(h5f, max_prob, None, None, clvrx_str_time, satellite, domain,
-                         ice_lons_vld=keep_lons, ice_lats_vld=keep_lats, extent=extent)
+                         ice_lons_vld=keep_lons, ice_lats_vld=keep_lats, extent=extent, prob_thresh=prob_thresh)
 
         print('Done: ', clvrx_str_time)
         h5f.close()
diff --git a/modules/util/plot.py b/modules/util/plot.py
index 98f22192d9f32b151e50d761c9b3c7d8d3a49964..931260c28ac8cf95cbcb338b2a52e5c3cd3366b9 100644
--- a/modules/util/plot.py
+++ b/modules/util/plot.py
@@ -254,7 +254,7 @@ def plot_image3(image, bt, cmap='Greys'):
 
 
 def make_icing_image(h5f, probs, ice_lons, ice_lats, clvrx_str_time, satellite, domain, ice_lons_vld=None, ice_lats_vld=None,
-                     ice_intensity=None, imagename='icing', extent=[-110, -60, 10, 55]):
+                     ice_intensity=None, imagename='icing', extent=[-110, -60, 10, 55], prob_thresh=0.50):
     # keep for reference
     # mrkr_styl = MarkerStyle('o', fillstyle=None)
     geos, xlen, xmin, xmax, ylen, ymin, ymax = get_cartopy_crs(satellite, domain)
@@ -277,7 +277,7 @@ def make_icing_image(h5f, probs, ice_lons, ice_lats, clvrx_str_time, satellite,
         # p_im = ax.imshow(probs, cmap='Purples', origin='upper', extent=(xmin, xmax, ymin, ymax),
         p_im = ax.imshow(probs, cmap='jet', origin='upper', extent=(xmin, xmax, ymin, ymax),
         # p_im = ax.imshow(probs, cmap=icing_cmap, origin='upper', extent=(xmin, xmax, ymin, ymax),
-                         vmin=0.52, vmax=1.0, alpha=0.8, transform=geos)
+                         vmin=prob_thresh, vmax=1.0, alpha=0.8, transform=geos)
     ax.coastlines(resolution='50m', color='green', linewidth=1.50)
     ax.add_feature(ccrs.cartopy.feature.STATES, linewidth=1.50, edgecolor='green')
     ax.add_feature(ccrs.cartopy.feature.BORDERS, linewidth=1.50, edgecolor='green')