A steel hula hoop spins.  When if falls it becomes a container.  Then the container's soft outer lining forms, depending on one's point of view, a bed, boat or coffin.  Deliberate randomness forms the strong visual story told by Chris Green's American Weather at HERE's Dorothy B.Williams Theatre. Thanks to Green and his collaborator's masterful multidisciplinary combination of puppetry, video, song, verse and live action, American Weather's barometer reads division.  This self-contained stage storm is played out across a picket fence with sharp edges.  Katie Melby is the slow-moving soul in front of the fence/screen and a puppet costumed as a fencer in back of it. The