This is a man, jogging through the streets of Washington, D.C., shirtless, wearing what appears to be a rubber horse mask.
Washington, D.C. blog DCist was able to get a hold of the HorseMan (also known as Jimmy Kruyne), who told them that "he just wanted to brighten people's moods on a dark, doom-filled day. 'Little spontaneous jogging hopefully put a smile on people's face before this awful storm,' he says."
I can only hope that the image of him high-stepping his way through an on-location shot by D.C.'s channel 4 is the enduring photograph of this whole "Dr. Frankenstorm's Monster" mess.
You're the centaur we needed on this day, Mr. Kruyne.
(h/t to Gaby Dunn for "Dr. Frankenstorm's Monster")