diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index f62e5c5cfbdef9188a603cfbf53860a73c780770..a1ff00554f22e5c2910b29a7d948571e33f01013 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -64,10 +64,10 @@ def process_cld_prob_(grd_k, dum):
     if num_keep / grd_k.size < 0.98:
         return None
     # hist_10 += np.histogram(grd_k.flatten(), range=[0.0, 1.0], bins=10)[0]
-    # keep = np.where(keep, np.logical_and(0.10 < grd_k, grd_k < 0.90), False)
-    keep = np.where(keep, grd_k < 0.50, False)
+    # keep = np.where(keep, grd_k < 0.50, False)
+    keep = np.where(keep, np.logical_or(0.15 > grd_k, grd_k < 0.85), False)
     frac_keep = np.sum(keep)/num_keep
-    if 0.30 < frac_keep < 0.70:
+    if 0.40 < frac_keep < 0.60:
         return None
     grd_k = np.where(np.invert(keep), 0, grd_k)
     return grd_k