The video taken in Fairbanks shows Army signal flares over Ft. Wainwright.  These flares have a long hang time as they are suspended by parachutes.

https://www.youtube.com/watch?v=dWvDzf1Wclk

Here's one version- with a shorter burn time.

http://www.pica.army.mil/pmccs/SupportMunitions/Signals/FamilyHandHeldSig/M127A1.html