diff --git a/lib/xmet/raob.py b/lib/xmet/raob.py
index ab8b34e..e4694cf 100644
--- a/lib/xmet/raob.py
+++ b/lib/xmet/raob.py
@@ -459,19 +459,19 @@ class RAOBObs():
         if heights[0] != '9':
             return dict()
 
-        if heights[1] != '/':
+        if heights[1] != '/' and len(heights) == 5:
             tens = int(heights[1])
 
-            if len(heights) > 1 and heights[2] != '/' and len(tokens) > 1:
-                h = 0.3048 * (10000 * tens) + (1000 * int(heights[2]))
+            if heights[2] != '/' and len(tokens) > 1:
+                h = 0.3048 * ((10000 * tens) + (1000 * int(heights[2])))
                 ret[h] = self.parse_wind(tokens[1])
 
-            if len(heights) > 2 and heights[3] != '/' and len(tokens) > 2:
-                h = 0.3048 * (10000 * tens) + (1000 * int(heights[3]))
+            if  heights[3] != '/' and len(tokens) > 2:
+                h = 0.3048 * ((10000 * tens) + (1000 * int(heights[3])))
                 ret[h] = self.parse_wind(tokens[2])
 
-            if len(heights) > 3 and heights[4] != '/' and len(tokens) > 3:
-                h = 0.3048 * (10000 * tens) + (1000 * int(heights[4]))
+            if heights[4] != '/' and len(tokens) > 3:
+                h = 0.3048 * ((10000 * tens) + (1000 * int(heights[4])))
                 ret[h] = self.parse_wind(tokens[3])
 
         return ret