Look up! Incredible cloud formations spotted across Canada

These ominous, churning thunderclouds were spotted above the town of Redwater, Alberta.

These bubbly-looking clouds in the town of Carleton Place, Ontario, are called mammatus clouds. They're incredible to see, though they often indicate severe thunderstorms.

This cotton candy sunset makes Thunder Bay look like a painting.

There have been multiple tornadoes across Alberta and Saskatchewan this past week. This massive wall cloud was seen south of Herbert, Saskatchewan, though thankfully a full tornado did not develop.

This beautiful shelf cloud was also seen in Saskatchewan, near Ponteix.

Blue skies aren't always clear skies. These bluish clouds hang over a field in southern Alberta.

This wall cloud, also known as a supercell, was photographed from Highway 56 in Alberta.

This lovely cloud-filled sky is reflected in the waters of Thunder Bay.

This massive stormcloud contains a small rainbow. This was photographed near Vulcan, Alberta, which has spent much of the past week on thunderstorm watch.

This sky is packed with clouds, and New Brunswick's Nerepis River below is filled with reflections.

The sky over Bonnyville, Alberta, put on its own show for Canada Day.

These clouds over Dewberry, Alberta, are roiling with an oncoming storm.

After the storms, there are the rainbows. Or in this case, an awesome double rainbow in front of calm skies over Two Hills, Alberta.