From 7d637dff04a66512042f8d10c450fdb1642a9181 Mon Sep 17 00:00:00 2001
From: Bill Ladwig <ladwig@ucar.edu>
Date: Thu, 9 Nov 2017 16:59:04 -0700
Subject: [PATCH] Sets cutoff point for Lambert Conformal so that southern
 hemisphere works.  Fixes #31.

---
 src/wrf/projection.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/wrf/projection.py b/src/wrf/projection.py
index f8b95d5..029bfa3 100644
--- a/src/wrf/projection.py
+++ b/src/wrf/projection.py
@@ -574,12 +574,16 @@ class LambertConformal(WrfProj):
     def _cartopy(self):
         if not cartopy_enabled():
             return None
-            
+        
+        # Set cutoff to -30 for NH, +30.0 for SH.
+        cutoff = -30.0 if self.moad_cen_lat >= 0 else 30.0
+          
         _cartopy = crs.LambertConformal(
             central_longitude = self.stand_lon,
             central_latitude = self.moad_cen_lat,
             standard_parallels = self._std_parallels,
-            globe = self._globe())
+            globe = self._globe(),
+            cutoff = cutoff)
         
         return _cartopy