May 31st featured a short wave trough moving across Colorado, with limited moisture, but strong shear. Most models developed storms off the Palmer Divide, intensifying as they moved east/southeast. That is exactly what happened. A storm started spinning and became tornado warned west of Cedar Point, but never showed strong enough rotation to produce a tornado. Another storm formed to the south of it and ended up being the storm of the day. As it steadily intensified, a severe thunderstorm warning was issued for it. As it approached Limon a DESTRUCTIVE STORM warning was issued for hail baseball sized. We encountered hail about golfball size as we had to punch the core and get ahead of it south of Hugo. About 10 miles south of town, structure became quite nice and a lowering formed with slow rotation. I thought for a bit that it might produce a tornado, but to no avail. It never could balance its updraft and downdraft well. With the sun getting low in the sky and having to be back in Denver soon, we waived goodbye one last time and headed home. A fun day and close to Denver made it an even better treat! Enjoy the pics!
May 29th Southeast Colorado Tornado Warned Supercells
May 29th brought the last tour day of the Prime Time Mini-tour and Mother Nature brought some nice storms for the ride back to Denver. Started the day in Lubbock, TX with a plan to chase around the Springfield, CO area. Moisture started to mix out in that area, but a nice cumulus field started to build just west of Lamar as a weak La Junta low was forming. We headed for that area and watched from just south of Highway 50 as cells developed between Caddoa and Lubers. As the cells consolidated, lightning became more frequent and we got some nice lightning photos. The southernmost cell then became severe warned and we headed towards the east side of Wiley to stay in front of the strengthening southern storm. After a short time, we had to reposition to the east again along county road 196 and then south to Highway 50. During this time, the cell just to the north of our storm became tornado warned (radar indicated). Unable to get closer to the northern cell, we were able to watch that supercell and the southern LP supercell from our position. As both supercells began turning hard right over and just to the east of Lamar, we took dirt roads to get to a great vantage point looking over open land and observing both cells. The northern supercell was once again was radar indicated tornado warned, but no tornado was observed nor reported. The storms were nearly stationary at this point, moving southeast very slowly which allowed us lots of time to watch and admire. As darkness set in, we decided to start our 4 hour drive back to Denver. Working our way around the south side of the storm, we were treated to an incredible view of the structure of the southern LP cell, causing us to stop and take more pictures. A great day was had by all, super way to end the 4 day tour!
May 20th Akron, Colorado Tornado Warned Supercell
May 20th took us to eastern Colorado for what appeared to be a decent set up on paper. High based storms formed before moisture could work its way west, however they did not last. By later in the afternoon a storm developed rapidly southwest of Akron as a cluster of cumulus deepened. The storm hit the better air and became severe. Structure improved, and soon a lowering developed with RFD dirt wrapping around it. A merry go round ensued. The developing rotation could not tighten enough to produce a tornado, but it was fun watching it try. Lightning became intense so we had to vacate our position and move east and south. Eventually the storm became quite messy and we chose to leave it since we had to be in Iowa the next day on a far better set up (see the next chase account!!!). Enjoy the pics!
July 29th Adams County, Colorado Tornado
A DCVZ (Denver Convergence Vorticity Zone) boundary set up with good southeast winds along and north of the Palmer Divide in east central Colorado. As surface winds wrapped around the north side of the Palmer Divide, a Denver cyclone formed. By mid afternoon cumulus towers formed along the boundary. One such tower developed into an intense thunderstorm and spawned a landspout tornado north of our house. Caryn, doing a local chase, intercepted the storm as a mature landspout was visible from many miles away. It stayed on the ground for several minutes before lifting. The tower cam at Denver International Airport even picked it up clearly!
July 20th Southeast Colorado Tornado Warned Supercell
July 20th featured good shear, excellent moisture and instability, and the Palmer Divide to produce storms with upslope flow. Mid afternoon a supercell formed near Simla, Colorado and turn to the south. As it did, it was rotating very strongly and may have produced a couple of broad, weak tornadoes. The lightning was absolutely insane with the supercell and the hail was quite large, up to softball sized! As the storm moved south, it was interfered with by another supercell and the southern storm became the dominant supercell. It moved southeast and eventually collided with northeast moving storm near LaJunta. Over the next 45 minutes it struggled to maintain any intensity until it finally pushed through all the left moving storms. It became tornado warned near Las Animas and had quite strong rear flank winds along with very large hail. We ended up letting it go as we needed to be back in Denver that evening. A great local chase for our tour group and one of the prettier supercells and lightning shows on the season! Enjoy the pics!!!
July 13th Eastern Colorado Tornado Warned Supercell
July 13th featured a play in eastern Colorado along an old outflow boundary from previous day convection. Storms formed fairly early, by 1pm along this boundary. It didn’t take long for them to become well organized and severe warned. One cell developed an impressive hook on radar and spun strongly. It produced a couple of funnel clouds, but nothing that touched down. Structure was nice, but storms became HP in nature as they moved almost due south in northwesterly flow aloft. Another cell formed southwest of the first and became tornado warned. We blasted towards it since our storm was weakening due to ingesting outflow air from the new storm. As we arrived on the new cell, it was quite messy and never looked like it would produce anything. We stayed with it for a couple more hours until numerous storms exploded between LaJunta and Lamar, CO. At that point, we called it a day and dropped south to our hotel in the Oklahoma panhandle. A fun day and our first supercell came very close to producing a tornado! Enjoy the pics!
June 22nd Highlands Ranch, CO Tornado
June 22nd took us close to home. We approached Denver after chasing north the previous day. We arrived as a supercell was coming off the foothills and intensifying as it right turned towards the Highlands Ranch area. Soon, a low level mesocyclone formed as a clear slot wrapped around it. Within a few minutes a low hanging wall cloud started spinning. Then a rather large barrel shaped tornado formed in the rich moisture and strong wind shear, and descended on Highlands Ranch. EF1 damage occurred as the tornado was on the ground for about 15 minutes traveling several miles. As the storm moved east, it back built on the southern flank towards the Palmer Divide. As we dropped south, another funnel cloud formed, but did not touch down. As we headed east from Peyton, CO the new southern storm became quite strong and was also tornado warned. However, it did not produce, but certainly was intense. Crazy day, and thankfully nobody was killed in the Denver metro area from this tornado.
Photo Tour #3 Thunderstorm Images June 26th through July 1st
Due to a very poor weather pattern across the plains of the US, we took our Photo Tour #3 group to Arizona to photograph the monsoon thunderstorms. We had some AMAZING success in northern Arizona, capturing severe storms near Winslow and the Grand Canyon. On the final day of the tour, July 1st, we ended up in southeast Colorado on a supercell that came out of the Sangre de Cristo moutains near Aguilar, Colorado and produced golfball sized hail and high winds. A testament to the fact that Silver Lining Tours will get you ANYWHERE there are severe storms and photogenic storms! Enjoy the pics!
June 7th Northeast Colorado Tornado Warned Supercells
June 7th took us to the north side of the Cheyenne Ridge, playing the upslope there with moderate shear, decent moisture and instability. Several storms formed, with a couple becoming supercells and even tornado warned. It is amazing what some chasers call a tornado (landspout) when it occurred in a part of a thunderstorm that landspouts wouldn’t even form in! Stay tuned to a narrative we will publish explaining how and where a landspout would form.
These storms moved southeast into northeast Colorado and became quite intense, producing very high winds and baseball sized hail. The continued moving southeast eventually into northwest Kansas and were continuously tornado warned or severe warned. Structure was very nice as they marched into central Kansas overnight. A fun day for the tours with plenty of excitement with the storms as we moved in very close to where rotation was, but no tornadoes were confirmed. Check out the images below!
August 19th Lamar, NE area Tornadic Supercell
August 19th looked too good not to chase. Good moisture, high CAPE values, strong lift with an approaching wave and good low level shear along a boundary would set the stage for a good day! Mid afternoon storms exploded over northeast Colorado and slowly intensified. One particular storm, south of Holyoke, CO became a supercell. As it drifted east/northeast along the boundary it took off and became tornado warned. Very very strong low level rotation was occurring and the low level mesocyclone eventually became rain wrapped where you couldn’t see it anymore. Extremely heavy rains (4-9 inches!) prevented me from taking dirt, now mud, roads to get into the notch for a better look. However, the storm did produce a tornado, possibly two, one of which was a fast funnel in the hook area before it wrapped up in rain. A fun chase day, and good results, just wished for a better view in the notch! Enjoy the pics!
