E of Rapid City, SD - 28 May, 2006

Orphan anvil - Badlands NP, SD - 28 May, 2006

Cumulus and MT Rushmore, SD - 29 May, 2006

Big ass bison - Windcave NP, SD - 29 May, 2006

Arcus/Roll Cloud at sunset - Texoma, TX, - 30 May, 2006

Arcus/Roll Cloud at sunset - Texoma, TX, - 30 May, 2006 (stitched pano)

Arcus/Roll Cloud at sunset - Texoma, TX, - 30 May, 2006

Arcus/Roll Cloud at sunset - Texoma, TX, - 30 May, 2006 (stitched pano)

Palmer Divide, Eastern CO, - 31 May, 2006 (stitched pano)

Orographic cu from Pikes Peak ,CO - 2 June, 2006

Cumulus and contrails - Grand Teton NP, WY - 4 June, 2006

Cumulus - Grand Teton NP, WY - 4 June, 2006

Old Faithful & mammatus, Yellowstone, NP, WY - 4 June, 2006

Old Faithful & waning mammatus, Yellowstone, NP, WY - 4 June, 2006

Cirrus and bison herd - Yellowstone, NP, WY - 5 June, 2006

Yellowstone, NP, WY - 6 June, 2006

Altocu - Upper Gyeser Basin, Yellowstone, NP, WY - 6 June, 2006

Rare eruption of Giant Gyeser, Yellowstone, NP, WY - 6 June, 2006

Grand Gyeser, Yellowstone, NP, WY - 6 June, 2006

Sawmill Gyeser and chaotic sky, Yellowstone, NP, WY - 6 June, 2006

Crested Pool (boiling!), Yellowstone, NP, WY - 6 June, 2006

Anvil over Billings, MT - 7 June, 2006

Convection from just N of Yankton SD - 9 June, 2006

Hail Shaft and Double Rainbow, E of Yankton SD - 9 June, 2006