Index: wflow-py/wflow/wflow_sbm.py
===================================================================
diff -u -rc3ba6c0bd01725069cb0e3f596fd5475847591c1 -r1e685c5eea9d95920f2e0e4e3d1fcc75c0fc2a1f
--- wflow-py/wflow/wflow_sbm.py	(.../wflow_sbm.py)	(revision c3ba6c0bd01725069cb0e3f596fd5475847591c1)
+++ wflow-py/wflow/wflow_sbm.py	(.../wflow_sbm.py)	(revision 1e685c5eea9d95920f2e0e4e3d1fcc75c0fc2a1f)
@@ -1336,10 +1336,10 @@
         #self.AA = catchmenttotal(self.PrecipitationPlusMelt, self.TopoLdd)
         #self.BB = catchmenttotal(cover(1.0), self.TopoLdd)
         # Single cell based water budget. snow not included yet.
-        CellStorage = self.CanopyStorage
-        CellStorage = self.UStoreDepth + self.FirstZoneDepth  + self.LowerZoneStorage
 
-        self.DeltaStorage = CellStorage - self.OrgStorage
+        self.CellStorage = self.UStoreDepth + self.FirstZoneDepth + self.LowerZoneStorage
+
+        self.DeltaStorage = self.CellStorage - self.OrgStorage
         OutFlow = self.FirstZoneFlux
         CellInFlow = upstream(self.TopoLdd, scalar(self.FirstZoneFlux))