diff --git a/modules/util/abi_surfrad.py b/modules/util/abi_surfrad.py
index 8f5bbf6ee22bb640adf033e314e53a0e14f65a8c..b55cee93720345e725b83d695c209699c8d41cf8 100644
--- a/modules/util/abi_surfrad.py
+++ b/modules/util/abi_surfrad.py
@@ -96,7 +96,7 @@ def run_all(directory, out_directory, day_night='ANY', pattern='clavrx_*.nc', st
     print('Start, number of valid files: ', num_files)
 
     total_num_not_missing = 0
-    num_skip = 2
+    num_skip = 4
 
     param_train_hist = np.zeros([20], dtype=np.int64)
     param_valid_hist = np.zeros([20], dtype=np.int64)