Went outside to let dogs out at above time listed. immediately saw patterned lights moving in a structured quartered square seeming to become out of frequency. immediately noticed change of light at safb (sheddard air force base).As i quickly moved eyes to airbase to see it go black with the air raid sirens screaming. looked at unknown object as it immediately flicked off like a light switch and was gone. the black out remained but the sirens stopped after a few seconds before. i stared in the direction of departure for an unknown amount of time. due to the blackout and air raid sirens i saw and heard, for me at least, concretely verified that what i had seen was an actual event and not just unknown lights in the night sky, i know this object was real. real. real real .