Ross G. R. Caldwell wrote:
We know Visconti was terrified of thunderstorms, at least Decembrio presents him as such - even having a special reinforced room made where he went to hide during bad storms; and a bolt of lightning one time destroyed a tower in the castle. Also, the Sicilian Tarot took the lightning away from the tower, and changed the Devil to a ship. And of course Pope and Popess (and Emperor and Empress) suffer various changes. So the imagery of individual cards is subject to suppression and change, beyond stylistic differences.
Nevertheless, whatever their "decorum" issues and how they present certain subjects, the luxury productions are modelled after the standard sequence, which did contain the Devil and the Thunderbolt. Common players weren't chasing around the rare luxury decks to model their cards on.
In German books there are collections of thunder- and lightning events, often modified to mythical dimensions. Also books with songs, which might help in the case of thunderstorms. It was a world before Benjamin Franklin, they hadn't a way to avoid the connected trouble.
3 card players smitten in Brieg by lightning, and 7 other nearby by playing with dice (found twice in books from 17th century). Both in 1303, second oldest note about card playing in Germany/Poland, direct after Ingold's "1300", written in 1432. The case smells, of course, like a myth.
Likely somebody wished to express, that God had been against against playing cards (3 victims), but more against the dice game (7 victims). Likely teaching material for preachers against gambling.
I've looked for connections between Jupiter and cannons, and found modern use of "Jupiter" as name for British Navy ships (6x), naturally all with lots of cannons.
HMS Jupiter (1778), ein Schiff der 4. Klasse mit 50 Kanonen, das 1778 vom Stapel lief und 1808 abgewrackt wurde.
HMS Jupiter (1813), ein Kriegsschiff 4. Klasse mit 50 Kanonen. Ab 1837 wurde sie als Truppentransporter eingesetzt und 1846 in eine Kohlenhulk umgewandelt. 1870 wurde sie abgewrackt.
HMS Jupiter war eine Kohlenhulk, die 1833 als Schiff der 5. Klasse mit 44 Kanonen mit dem Namen HMS Forth (1833) vom Stapel lief. 1869 wurde sie in Jupiter umbenannt und 1883 verkauft.
HMS Jupiter (1895), ein Schlachtschiff der Majestic-Klasse, das 1895 vom Stapel gelassen und 1920 verschrottet wurde.
HMS Jupiter (F85), ein Zerstörer der J-Klasse, der 1938 vom Stapel lief und 1942 durch einen Minentreffer versenkt wurde.
HMS Jupiter (F60), eine Fregatte der Leander-Klasse, die 1967 vom Stapel lief und 1997 zur Verschrottung verkauft wurde.
I found no 15th century material, but generally the idea seems to have been not rare to connect cannon use with the Jupiter name.
Naming cannons wasn't rare in old times, I know examples.
Chinese chess developed a cannon figure.