1 i was getting out of the house walking to my car. i am on a 2nd floor and have a clear view towards the hills where i saw the object. 2 i saw a white flash in the corner of my eye wich made me turn mi sight towards the object. probably the flash was emmited by the object. 3. i thought it was a blimp because of the shape, or maybe a drone. 4. after the flash i noticed the object wich was moving slowly towards south. then it either flipped or changed shape. now it was looking more like a rectangle. then i tought it could be a drone. but then it either dissappeared behind a cloud. this made me change my mind about the size. no drone flies that high. the color was gray. non reflective. there was no sun at the time of the sighting. no other flash was emited. the event lasted less than a minute. my guess is it was about 2-3 miles away (because that's my estimate of the distance of the clouds it went into) wich makes me guess that the size was about 70ft. 5. at first i was confused, no plane flies that slow and it had no rotors so it was not a helicopter. then when i couldn't tell the exact shape i got excited and tried to go get the binoculars but didn't want to miss it. by then it had already dissappeared wich left me more confused. 6. it went behind a cloud.