it was invisable. i only noticed it when it was struck by lightning. when the lightning hit, it seemed very large and spherical. it was hard to judge how far away from me it was but i would estimate its size as being as big a 5story house.

there was a large lightning storm at the time. i was in my car facing south. i noticed a bolt of lightning come down from the sky and hit something mid-air. there are no tall buildings or other objects around that area. as the lightning hit, it showed the shape of the UFO as a very large spherical object. the lightning illuminated the shape and enveloped the sphere. the lightning never hit the ground but seemed to be absorbed into the object.

the sky was fairly bright at this time but there was nothing that could be seen after the lightning had hit, as if it was camoflaged or simply invisable to my eye. also that night just before my sighting, i noticed two lightning strikes that i didnt directly see but they illuminated the sky red.