diff --git a/nes/nc_projections/default_nes.py b/nes/nc_projections/default_nes.py
index 399968f0a0b0ecd40b6f9663c3ab13b1a7e12c6a..68e087a88af1375313a138b82ac1492573e0355f 100644
--- a/nes/nc_projections/default_nes.py
+++ b/nes/nc_projections/default_nes.py
@@ -3763,7 +3763,7 @@ class Nes(object):
         
         return None
 
-    def to_shapefile(self, path, time=None, lev=None, var_list=None):
+    def to_shapefile(self, path, time=None, lev=None, var_list=None, info=True):
         """
         Create shapefile from NES data.
         
@@ -3781,6 +3781,8 @@ class Nes(object):
             Vertical level to select.
         var_list : List, str, None
             List (or single string) of the variables to be loaded and saved in the shapefile.
+        info: bool
+            Flag to allow/suppress warnings when the 'time' or 'lev' parameters are None. Default is True.
         """
         
         # If list is not defined, get all variables
@@ -3801,9 +3803,10 @@ class Nes(object):
 
         # Select first vertical level (if needed)
         if lev is None:
-            msg = "No vertical level has been specified. The first one will be selected."
-            warn(msg)
-            sys.stderr.flush()
+            if info:
+                msg = "No vertical level has been specified. The first one will be selected."
+                warn(msg)
+                sys.stderr.flush()
             idx_lev = 0
         else:
             if lev not in self.lev["data"]:
@@ -3812,9 +3815,10 @@ class Nes(object):
 
         # Select first time (if needed)
         if time is None:
-            msg = "No time has been specified. The first one will be selected."
-            warn(msg)
-            sys.stderr.flush()
+            if info:
+                msg = "No time has been specified. The first one will be selected."
+                warn(msg)
+                sys.stderr.flush()
             idx_time = 0
         else:
             if time not in self.time: