sorry but no..data does NOT go to the cloud... jammer defeats ALL communication to ALL outside receivers.
yes, you 'should' get an alrert, due to 'loss of communication', but depending on who setup the system , that could be 1 minute, 5 minutes, 10 minutes or more before you get the 'loss of communication' report.
'few minutes'....the thief could easily be 5-20 miles away before you know it 'might' be stolen.BTW the smart crooks use an enclosed van or tarp their targets,so NOBODY can SEE it's YOUR pride and joy going down the road.
won't be connected, so the 'outside the yard' won't be sent....
ZERO reporting to GoogleMaps and others..... as the transmitter has been jammed.
The ONLY thing you will know is when 'loss of communication' has occoured. you do not know WHY though. Could be low battery(not enough to trip 'lowbat' bit'),damaged antenna,tincan covering antenna(yes, it's THAT simple...),total power failure(poof,black smoke),cell tower down, cell service server failures,your cell phone losing the ap setup.someone hacks your phone ap.
I started designing securtiy systems in the '70s, ULC AA listed, that's one below requiring an armed guard outside of the central monitoring station( think BIG banks as clients). yes, since then , the tecjh has gotten better..but so have the crooks. They can use Google, just like us 'regular folks' and it amazes me how much of the 'details' of security systems is available online.