diff --git a/modules/util/viirs_surfrad.py b/modules/util/viirs_surfrad.py
index 38e11bb88dd287c4fb33f1aa14cc4a482a851d44..db9aa86e5f857dd9c75d2e1c8f41ef0ac6b44740 100644
--- a/modules/util/viirs_surfrad.py
+++ b/modules/util/viirs_surfrad.py
@@ -92,11 +92,11 @@ def process_cld_opd(grd_k):
     keep = np.invert(np.isnan(grd_k))
     num_keep = np.sum(keep)
     keep_thin = np.where(keep, np.logical_and(grd_k > 0.1, grd_k < 4.0), False)
-    keep_thik = np.where(keep, np.logical_and(grd_k > 20.0, grd_k < 158.00), False)
+    keep_thik = np.where(keep, np.logical_and(grd_k > 4.0, grd_k < 40.0), False)
     frac_thin = np.sum(keep_thin) / num_keep
     frac_thik = np.sum(keep_thik) / num_keep
-    # if not (frac_thin >= 0.10 and frac_thik >= 0.10):
-    if not (frac_thin >= 0.20):
+    if not (frac_thin >= 0.20 and frac_thik >= 0.20):
+    # if not (frac_thin >= 0.20):
         return None
     grd_k = np.where(np.invert(keep), 0, grd_k)
     return grd_k