diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index e28d928dacb400a9e9870ea369eb443198d60aed..6a102f1ea95dcfd72afc341dd7ce33ce0f981c19 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -65,7 +65,7 @@ def process_cld_prob_(grd_k, dum):
         return None
     # hist_10 += np.histogram(grd_k.flatten(), range=[0.0, 1.0], bins=10)[0]
     keep = np.where(keep, np.logical_and(0.1 < grd_k, grd_k < 0.90), False)
-    if np.sum(keep)/num_keep < 0.30:
+    if np.sum(keep)/num_keep < 0.25:
         return None
     grd_k = np.where(np.invert(keep), 0, grd_k)
     return grd_k