Abstract: An umbrella (10) having an expandable auxiliary screen (30) supported from the ribs (12), struts (6) or canopy of the umbrella is expandable from a collapsed configuration by rotation of a spool (20) in a first direction to spool out line to descend a distal end of the auxiliary screen relative to the proximal end of the auxiliary screen. The auxiliary screen may comprise a plurality of panels, comprising a generally water-resistant material, coupled along seams to adjacent panels of the auxiliary screen. Alternately, the auxiliary screen may comprise a pliable and generally water-resistant material that generally corrugates to a collapsed configuration and generally flattens to an expanded configuration.