800-kiloton nuclear warhead detonated above Manhattan?

[Marlin]

What would happen if an 800-kiloton nuclear warhead detonated above midtown Manhattan?



http://thebulletin.org/what-would-happen-if-800-kiloton-nuclear-warhead-detonated-above-midtown-manhattan8023

[mjd]

This might be about the last crew that should have access to this toy, but have fun. Pick your poison & solve all the world problems. Hint: a ground detonation causes the most havoc.
http://nuclearsecrecy.com/nukemap/