diff --git a/model/src/ww3_shel.F90 b/model/src/ww3_shel.F90
index ee3464f44b..658c4bcf61 100644
--- a/model/src/ww3_shel.F90
+++ b/model/src/ww3_shel.F90
@@ -313,7 +313,7 @@ PROGRAM W3SHEL
   !/ ------------------------------------------------------------------- /
   !/ Local PARAMETER statements
   !/
-  INTEGER, PARAMETER  :: NHMAX =    200
+  INTEGER, PARAMETER  :: NHMAX =    1000
   !/
   !/ ------------------------------------------------------------------- /
   !/ Local parameters