diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index d9c99a141cf6bcee5cb7fd0099dd83f8fca3bfbd..2f175956276770e8b8ba46b8e44bff7ab318881c 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -66,7 +66,7 @@ def process_cld_prob_(grd_k, dum):
     # hist_10 += np.histogram(grd_k.flatten(), range=[0.0, 1.0], bins=10)[0]
     keep_clr = np.where(keep, grd_k < 0.20, False)
     frac_keep = np.sum(keep_clr)/num_keep
-    if not (0.38 < frac_keep < 0.62):
+    if not (0.40 < frac_keep < 0.60):
         return None
     grd_k = np.where(np.invert(keep), 0, grd_k)  # Convert NaN to 0
     return grd_k