diff --git a/lib/xmet/raob.py b/lib/xmet/raob.py
index 1009db4..6ec0573 100644
--- a/lib/xmet/raob.py
+++ b/lib/xmet/raob.py
@@ -209,7 +209,13 @@ class RAOBObs():
         if token[0:2] == '//':
             wind_dir = None
         else:
-            wind_dir = meters_second(float(token[0:3]) + base_dir)
+            v100 = int(token[0]) if token[0] != '/' else 0
+            v10  = int(token[1]) if token[1] != '/' else 0
+            v1   = int(token[2]) if token[2] != '/' else 0
+
+            value = float(100.0 * v100 + 10.0 * v10 + v1)
+
+            wind_dir = meters_second(value + base_dir)
 
         if token[3:5] == '//':
             wind_speed = None