Tag Archives | June 2009

June 24, 2009 South Dakota Long Lived Supercell

June 24th had potential. Good deep layer shear, decent moisture, high instability and a mesolow along an outflow boundary would provide all the ingredients to produce several supercells in South Dakota. We spent part of the afternoon in Murdo and waited for something to happen. Finally by early evening, a tornado warned supercell formed and right turned strongly into far south central South Dakota and eventually into Nebraska. This storm had great structure and tried several times to produce a tornado. It did produce hail to baseball size.

June 17, 2009 Central Nebraska Tornadoes

June 17th was certainly a day I will never forget. All parameters pointed to a triple point boundary in central Nebraska, just north of Kearney. By late afternoon, an intense tornadic supercell developed and tracked eastward through Grand Island and Aurora, producing a large and destructive tornado just west of Aurora. We would witness half dozen tornadoes this day, culminating with the Aurora, Nebraska monster. I only put photos up here and no video stills, thus only 2 tornadoes are in photos. Here is a wild 5 minute video from this event:

June 16, 2009 South Dakota Tornado Warned Supercell

June 16th was a surprise day. We were figuring on a down day or a day that had very marginal potential. By late morning, several storms developed along the east side of a surface low in northern South Dakota. Many were tornado warned. We couldn’t get there in time coming up from Salina, Kansas, but we did manage to catch the storm that was the largest and longest tornado warned in South Dakota. It had beautiful structure and very large hail. Also it produced a large, but weak tornado that ripped through the Menno area causing lots of tree damage and damage to several tin buildings.

June 15, 2009 Kansas Tornadoes

June 15th was a strange day. Early on it looked like the area along the Kansas/Nebraska border would provide the best opportunities for severe storms and tornadoes. We ended up playing the dry punch in southwest Kansas, and intercepted a tornadic supercell near Belpre, Kansas. Later that evening, there were tornadic supercells in southern Nebraska as well.

June 13, 2009 Adams County, Colorado Tornadic Supercell

June 13th was the arrival day for my next tour. As such, Murphy’s Law always seems to be in place! After a visit with Caryn at her horse show (which she kicked butt!), I frantically drove to the hotel, grabbed all the guests and off we went to chase this beast, just north of my house!

It was a fantastically structured monster, with a classic supercell appearance, clear slot with rapid rising scud east of it, long streaming beaver tail and barber pole appearance to the updraft. Although it did not produce any significant tornadoes, it did produce two small, but photogenic tornadoes. I was in such a hurry I forgot to grab my still camera, but I always have my dashcam to shoot video and grab a few stills from.

June 11, 2009 Southeast Colorado Beautiful Supercells

June 11th looked like a good setup in Colorado. Good upslope flow, an old boundary, good shear and moisture, would set the stage for tornado warned supercells east and southeast of Pueblo, CO. We intercepted two such storms, both of which had fantastic structure and tried all they could to produce tornadoes. In the end though, weak low level winds would inhibit much in the way of tornado formation.


June 6, 2009 Nebraska Supercells

June 6th was an in between day for me and the tours, thus I couldn’t resist a highly sheared environment in western Nebraska. Caryn and I, along with a couple of guests, intercepted 2 beautifully structured and tornado warned supercells. The first near Thedford and the second near Hershey. The structure and electrification of the second storm was absolutely breath taking!

June 5, 2009 LaGrange, Wyoming Tornadic Supercell

Probably one of the most well documented tornadoes in history by Vortex II and The Weather Channel. We intercepted the entire life cycle of this gorgeous tornado and supercell from west of LaGrange till its dissipation well into Nebraska. This tornado was on the ground for nearly 30 minutes moving at speeds less than 30 mph.