Tornado Watch expires at 3:00 AM on 5/21, issued at 7:38 PM Alderson, OK | Arkoma, OK | Blanco, OK | Blocker, OK

Tornado Watch expires at 10:00 PM on 5/20, issued at 1:10 PM Adair, OK | Afton, OK | Agra, OK | Alderson, OK

Severe Thunderstorm Warning expires at 8:45 PM on 5/20, issued at 7:39 PM Wardville, OK

Severe Thunderstorm Warning expires at 8:30 PM on 5/20, issued at 7:26 PM Arkoma, OK | Bokoshe, OK | Bunch, OK | Cameron, OK

Severe Thunderstorm Warning expires at 8:00 PM on 5/20, issued at 7:01 PM Alderson, OK | Arkoma, OK | Blanco, OK | Blocker, OK

Severe Thunderstorm Warning expires at 8:00 PM on 5/20, issued at 6:56 PM Arkoma, OK | Bokoshe, OK | Boynton, OK | Braggs, OK

Flash Flood Watch expires at 7:00 PM on 5/21, issued at 12:47 PM Adair, OK | Afton, OK | Alderson, OK | Arkoma, OK

Flash Flood Watch expires at 7:00 AM on 5/21, issued at 12:47 PM Avant, OK | Barnsdall, OK | Bartlesville, OK | Big Cabin, OK