No
Any: conventional, nuclear, or impact can cause a mushroom cloud.
mushroom cloud
A nuclear detination
A mushroom cloud is the product of a very large explosion, such as from the detonation of a nuclear weapon. The cloud itself is formed by the rapidly rising ball of hot gasses.
ALL explosions both nuclear and conventional produce mushroom clouds (fires do too). The mushroom cloud is just a column of rising hot air with a toroidal vortex at the top where cool air falls down around the top of this column. The cloud is made visible by debris and smoke being carried up in the hot air.However nuclear explosions produce mushroom clouds that are both larger and last longer than those produced by other means because of the higher energy release, so they are more visible over longer distances and more memorable.
The thumb mushroom cloud is a visual representation of a nuclear explosion, specifically the shape of the cloud that forms after the detonation. It is significant because it is a distinctive and recognizable symbol of the destructive power of nuclear weapons. The shape of the mushroom cloud is caused by the rapid expansion of hot gases and debris in the atmosphere following the explosion. This iconic image has become synonymous with the devastating impact of nuclear warfare and serves as a reminder of the potential consequences of using such weapons.
surface burstshallow subsurface burstvery low altitude airburstan optimal depth shallow subsurface burst will produce the biggest crater.even conventional explosives produce mushroom clouds, just proportionally smaller with the smaller yield.
A mushroom cloud is a distinctive pyrocumulus mushroom-shaped cloud of condensed water vapor or debris resulting from a very large explosion. They are most commonly associated with nuclear explosions, but any sufficiently large blast will produce the same sort of effect. Mushroom clouds are formed by many sorts of large explosions under earth gravity, though they are best known for their appearance after nuclear detonations. Inside a mushroom cloud: cooler air is drawn into the rising toroidal fireball, which itself cools into the familiar cloud appearance.
mushroom cloud, Hiroshima, radiation sickness, collateral damage,
Gravity if forming the clouds from the atomic bomb.
Surface burst
A nuclear explosion is the type of explosion that causes a mushroom cloud. The distinctive mushroom-shaped cloud is formed when the intense heat and energy of the explosion causes the surrounding air and debris to rise rapidly, creating the iconic cloud formation.