#endif
+/**
+ * Initialize a single value through all existing weather levels.
+ *
+ * This function is useful mainly from the command-line.
+ *
+ * @param propname The name of the subproperty to initialized.
+ * @param value The initial value.
+ */
+extern void fgDefaultWeatherValue (const char * propname, double value);
+
+
/**
* Clean up and exit FlightGear.
*