It depends on the yield of the device you use. Some have a range of only a few hundred yards, others coould cover areas more than 50 miles from ground zero.
square miles and radius have different units
A standard bomb relies on the explosive power of chemical energy, like TNT for example. The size of the blast will depend on the amount of explosives packed into the bomb. After the blast, there will be the "usual" damage, which will be proportionate to the size of the bomb. Destruction and casualties will present as they always have from the blast of a weapon. With a nuclear weapon, the energy is derived from the nuclei of atoms (using either fission or fusion). It is nuclear energy, and nuclear weapons are, by tapping into this type of energy, able to deliver a much larger blast and broader blast effects than conventional weapons. The blast can be thousands or millions of times more devastating than any conventional bomb blast. And in addition to killing in the way chemical explosives do, it can also severely burn and can irradiate victims, and they can die weeks, months or even years after surviving the initial blast. There is also the element of nuclear "residue" from the nuclear blast. Radioactive contaminants will be found on the ground and in the air. And the airborne ones will circulate according to local weather patterns. This will create what is called fallout, and the radioactive materials can be deposited many miles from ground zero. This ends up creating health damaging effects far from the site of the blast.
11.3 square miles
depends on the size of the nuke, and how many you drop
There is no impact of weather on nuclear weapons. They are stored in secure facilities which includes shelter from the weather. Nuclear weapons however do have an impact on the weather. A nuclear blast sends dust and gas into the upper atmosphere where it blocks sun-light from making it all the way to the surface. The cumulative effect of many many many such explosions is feared to create a nuclear winter and promote the onset of a new ice-age.
square miles and radius have different units
You cover 31.25 miles.
You cover 8 miles in 30 minutes.
It depends on the size of the Nuclear device, anywhere from 5 square miles and up
I'm think we can't theorize about the unverifiable but a fact is that a nuclear device creates a dense blast wind. In the other hand, many scientists believe that nuclear test in the deserts of the United States are the reason of the reapeted twisters attacks. In other words, nuclear bombs are linked to tornadoes already.
It cover 500 thousand square miles.
Too many
A standard bomb relies on the explosive power of chemical energy, like TNT for example. The size of the blast will depend on the amount of explosives packed into the bomb. After the blast, there will be the "usual" damage, which will be proportionate to the size of the bomb. Destruction and casualties will present as they always have from the blast of a weapon. With a nuclear weapon, the energy is derived from the nuclei of atoms (using either fission or fusion). It is nuclear energy, and nuclear weapons are, by tapping into this type of energy, able to deliver a much larger blast and broader blast effects than conventional weapons. The blast can be thousands or millions of times more devastating than any conventional bomb blast. And in addition to killing in the way chemical explosives do, it can also severely burn and can irradiate victims, and they can die weeks, months or even years after surviving the initial blast. There is also the element of nuclear "residue" from the nuclear blast. Radioactive contaminants will be found on the ground and in the air. And the airborne ones will circulate according to local weather patterns. This will create what is called fallout, and the radioactive materials can be deposited many miles from ground zero. This ends up creating health damaging effects far from the site of the blast.
15.444 square miles
30-50 miles but radiation can cover way more.
1,243.6 seconds to cover 19 miles at 55mph
4416 SQ. miles.