LOGICAL FUNCTION UA_MPID  ( field )
C************************************************************************
C* UA_MPID								*
C*									*
C* This function determines whether the input field (i.e. group)	*
C* contains a maximum wind by pressure data indicator.			*
C*									*
C* UA_MPID  ( FIELD )							*
C*									*
C* Input parameters:							*
C*	FIELD		CHAR*		Field				*
C*									*
C**									*
C* Log:									*
C* J. Ator/NCEP		10/99						*
C************************************************************************
	INCLUDE		'GEMPRM.PRM'
	INCLUDE		'uacmn.cmn'
C*
	CHARACTER*(*)	field
C------------------------------------------------------------------------
	IF  ( ( field (1:2) .eq. '77' ) .or.
     +	      ( field (1:2) .eq. '66' ) )  THEN
	    UA_MPID = .true.
	ELSE
	    UA_MPID = .false.
	END IF
C*
	RETURN
	END