It is possible to add another plot by ticking the `Add image' box below the second image and then clicking on `Confirm selections'.
Storm 9 had its peak vorticity on 850hPa at 10:00 on 7/8/1986.
ERROR: unable to display file, /home/storms/cgi-bin/storms/shplots/storm9/ERA_STORMS_storm9_mslp_-72hr.png