first alarm does not stop unless i turn the LPIII off

Has anyone else had this issue? I have three morning alarms -- 5:50 am, 6:00 am, 6:15 am. Lately, when the first one goes off, I do not have an option to turn it off or snooze and instead have to turn the phone all the way off and back on. I noticed this morning that the weather app was open for some reason as my alarm was going off (lol?)