Chris is an FX animator in Ottawa working with ToonBoom.
His style and design is impeccable and exquisite as he executes flawless fluidity in his timing and subtle nuances, giving character to these effects animation tests.
See his Vimeo site here. He'll surely be placing more clips and tests someday, make sure to see them.
Here's a fire test he made in Flash. Included are the roughs to show his progression.
Lastly, here's another quick clip he made in Flash.
Visit his blog, showcasing plenty of nice designs.