 |
 |
January 1997-2002 |
July 1997-2002 |
 |
 |
Surface: January 1998-2003 |
700 mb: January 1998-2003 |
 |
 |
Surface: March 1998-2003 |
700 mb: March 1998-2003 |
 |
 |
Surface: May 1998-2003 |
700 mb: May 1998-2003 |
 |
 |
Surface: July 1998-2003 |
700 mb: July 1998-2003 |
 |
 |
Surface: September 1998-2003 |
700 mb: September 1998-2003 |
 |
 |
Surface: November 1998-2003 |
700 mb: November 1998-2003 |