Exactly!
British naval monitors were NOT like the USS Monitor and other similar ships which were indeed unsafe in rough seas and several sank iirc
However US did have plans to make improved oceanic versions iirc, which may have been interesting if they ever got off the drawing board. Those swould have had multiple turrets.
British Navy was a world wide service, hence our ships unlike Germans were built for long distances and with better accommodation, where as Germany knew they could mostly bunk their men on shore.
Monitors could get refuelling at the many bases UK had
Precision HEAVY shell fire, especially when aerial bombing is even less likely than WW2, is invaluable.
It can play key part in operations cause a 15" shell can smash bunkers, railway lines, bridges and troops concentrations
Zeppelins etc are very very vulnerable to weather, they can actually be far more accurate than early WW2 bombers but were thus also extremely easy to damage (low level low speed passes were accurate but risky as heck)[/quote]
The US Navy DID commission monitors that were, somewhat, able to give oceanic service. Various members of the 1880s-1900s monitors sailed to South America (Peru), to Bermuda, to the Azores and to the Philippine Islands under their own power (USS Monterey & USS Monadnock).
Depending on the class they carried 10" and/or 12" guns in either 1 or 2 turrets.