diff --git a/modules/util/abi_surfrad.py b/modules/util/abi_surfrad.py
index 3a3e295678f5b391d1380d03915adf4dfac83bae..3a57507034cb7f58c5807a2d1994743e0393337d 100644
--- a/modules/util/abi_surfrad.py
+++ b/modules/util/abi_surfrad.py
@@ -60,7 +60,7 @@ def process_cld_prob(grd_k):
     keep_cld = np.where(keep, grd_k > 0.70, False)
     # frac_clr = np.sum(keep_clr)/num_keep
     frac_cld = np.sum(keep_cld)/num_keep
-    if not (0.10 <= frac_cld <= 0.90):
+    if not (0.30 <= frac_cld <= 0.90):
         return None
     grd_k = np.where(np.invert(keep), 0, grd_k)  # Convert NaN to 0
     return grd_k