59: smoking bomb

Dynamites

Gokudera like I already mentioned before uses the dynamite as his main weapon, during normal battles he use this weapon, and he lit it using his cigarette. During Gokudera's "dynamite maintenance", it is revealed that he carries huge amounts of dynamite on him at all times. He also used some dynamites techniques likeDouble Bomb, Triple Bomb, Double Bomb with mini bombs, Bomb Blaze, Rocket Bomb.

Sistema C.A.I.

The Sistema C.A.I. or Sistema Cambio Arma Istantaneo (lit. System Change Arms Instantaneous or Instantaneous Arms Change System in Italian)

This is a system of box weapons that utilize the flames that flow within his body. It runs on this principle: while everyone is aligned with one of the seven ring elements, in order to draw out the Dying Will Flame, a person will end up drawing other attribute flames that are weaker then the wielder's main attribute. Sistema C.A.I. is designed to use such weaker flames to utilize multiple rings to open and complement his storm-based element.

Flame Arrow – it is a metallic mini "cannon" with a skull at the end, and then attaches to his arm. So far the cannon have shown two abilities. By expelling a powerful gust of wind, the cannon can temporarily diffuse the Dying Will Flames of others. It is also capable to shoot a destructive explosive blast provided when loaded with dynamite. It communicates its needs through a projection of italian words. It is later revealed to be the main offensive weapon in the Sistema C.A.I. and gains new functions with each attribute.

Rain: By coating the storm rockets with the Rain's Tranquility, enemy's flames are weakened, allowing the rockets to bypass the enemy's defense.

Sun: The Sun's "activation" and high power output increases the speed of the storm rockets, creating a attack with an unpredictable acceleration.

Cloud: The cannon fires one shot that spreads in a tree-diagram like fashion, due to Cloud's propagation, creating a wide spread attack that is difficult to avoid.

Thunder: A solid beam, due to the lightning's solidification. Gokudera claims it is his strongest attack.

Uri An Storm attribute animal box containing a baby leopard.