To clarify the headline a bit, the connectivity is for “T-Mobile customers in Florida who may lose cellular service due to Hurricane Milton”, not connectivity for the hurricane itself, which I assume is doing just fine.

In the US, mobile devices can’t make emergency calls using any network? I never noticed, but it’s law for everywhere else I know. If there’s any network in range, regardless of who owns it or if it’s the driven around pop-up towers, anything with an IMEI can use whatever’s around for emergency comms.

Starlink’s Hurricane relief offer is not quite as free as advertised