The first shot was taken on a Polaroid SX70 Sonar camera. The film is PX70 PUSH! from The Impossible Project.
As a comparison, the next two shots were taken on a Polaroid SX70 Alpha camera using The Impossible Project's new PX680 film. I was using a beta test pack, so it has some tiny white specks, but those are sure to disappear when the real stuff rolls out on May 5th!
The next two were taken on a Polaroid Spectra System camera using expired Softtone film.
The last three shots were all taken on my Polaroid 430 land camera using expired 690 film.
As you can tell from the last photo, the storm didn't last terribly long. Within a couple of hours it was all but spent and the clouds really started to dissipate. Our pup did awesome for all the new stuff we were throwing at her on this excursion, and we really enjoyed being out in nature.