Tag Archives | storm

July 11th Black Hills of South Dakota Severe Storm

We weren’t expecting much on July 11th. Nature decided to give us a pretty storm southwest of Spearfish, SD late day. The cell was very photogenic, and throw in the fields of sweet clover and you had a winner! The cell traveled for a few hours across northeast Wyoming into western South Dakota, where it dissipated over the Black Hills. Very pretty to watch and photograph! Enjoy the pics!

July 7th Broadus, MT Lightning

July 7th was the first day of tour 9. We headed north from Denver to arrive in southeast Montana. Decent shear, moisture and instability provided the needed ingredients to get severe storms going this day. By evening clusters of storms formed and as the sun went down they were beautifully electrified! We were headed just north of Broadus when a new updraft developed and started sparking quickly. We stopped on the side of a road and watched as the storm had tons of cgs in  it. As the storm weakened we headed north to our hotel. Enjoy the pics!

July 4th Chugwater, Wyoming Tornado

What a way to spend the 4th of July! We decided mid morning that it looked too tempting not to chase this day. Upslope flow into the Laramie Range in southeast Wyoming was the hot spot. Good shear,  instability and moisture would help form an intense supercell mid afternoon. This storm crossed the Laramie Range and intensified as it moved east off the higher terrain. We were just west, then southwest of town as the storm spun hard. A funnel formed and nearly touched down as it crossed the mountains. Once close to town a very low and strongly rotating wall cloud formed. Soon a nice cone shaped tornado touched down and stay on the ground for nearly 25 minutes! It crossed I-25 south of town and as the cell moved east it encountered more stable air and weakened.

This supercell had fantastic structure, intense cloud to ground lightning and baseball sized hail.  The tornado caused no damage thankfully and was a treat to watch and photograph. In hindsight I wish we would have stayed south of it instead to trying to stay in front of the storm. The views from the south were stunning! A fun way for us to spend the 4th of July. Once we got back home after dark, we had our own private fireworks from a large pack we bough last year in Missouri. Enjoy the pics!

June 25th Devil’s Tower, Wyoming Tornadic Supercell

June 25th had a lot going for it. Strong shear, good moisture and increasing instability were present, as well as a nice boundary along the Black Hills Convergence Zone (BHCZ).  Initially storms formed in the drier, well mixed air off the Big Horn mountains in north central Wyoming. These cells moved east with one storm in particular taking over and becoming a pretty high based supercell. We stayed on the back side of it east of Wright and watched it race off into the southern Black Hills.

I had a hunch that more storms would form along the boundary, and due to good moisture, these cells would not be so high based. A few storms formed south of Broadus, Montana and moved southeast along the boundary. The tail end cell, as usual, took over and became a very formidable supercell. As this storm approached the area just north of Hulett, twin EF1 tornadoes formed (Per NWS damage survey). We could briefly get a visual of one of them.  Structure was superb, and the lightning was very intense. As the storm approached us, we had to blast south to Hulett to get out of it’s way. It raced eastward and we had no way of staying up with it. Other storms also formed and became quite electrified. We stayed with this cluster through dusk when they weakened. Two pretty, but very different supercells from each other and two tornadoes. Indeed, a great chase day to kick off the SLT Photo Tour #3! Enjoy the pics!

June 21st Palmer Divide Briefly Tornadic Supercell

We weren’t expecting anything significant on June 21st. However, as often happens in the upslope regions of Colorado combined with terrain features, a decent supercell formed north of Colorado Springs along the Palmer Divide. Good directional shear due in part to strong easterly winds helped the storm to organize and rotate. As the cell approached the town of Kiowa, the low levels started spinning strongly. You can see a hook forming visually and rotate pretty rapidly. A tornado warning was issued by the NWS and soon an area of rotating debris was seen under the hook area of the storm. This weak tornado only lasted a couple of minutes.

As the cell moved further east, it encountered less surface moisture and instability, which caused it to steadily weaken and eventually dissipate east of Limon. Several other storms initiated in the cold side of the first cell’s outflow and never could really intensify for long periods. A fun chase and right in our backyard.

June 17th West Texas Tornado Warned Supercell

Sometimes, you just don’t care if a storm produces a tornado. It can be that pretty. Dryline supercell thunderstorms can be quite pretty, although they are often higher based. This day would give us just that. We had a high based supercell that formed along the Texas/New Mexico border and drifted slowly southeast towards Muleshoe, Texas. It spun like crazy. There was plenty of shear and instability this day and with the active dryline closeby we were hoping for a pretty storm. Active for several hours, this supercell produced incredible lightning, some of the best of 2019 to date and had nice structure.

Other storms would form later in the day and especially during the early evening as the cap was breached. Many of these storms were very electrified and intense, often being warned for large hail and damaging winds. A couple storms would become tornado warned, however no tornadoes occurred this day in our area. All in all, a fun day with a great storm and superb lightning!

May 27th Northeast Colorado/Southwest Nebraska Tornadic Supercells

This day had a lot going for it. Great shear, good moisture and instability, and a dryline would help set the stage for intense supercells. Our first storm of the day formed near Ft Morgan and tracked northeast along I-76.  It became a rather large and occasionally disorganized supercell. However as it approached Sterling, it wrapped up hard and produced a brief, small tornado. Further to the east, a second, well organized and photogenic supercell formed. It produced a few brief tornadoes, however the structure of this storm would be one of the prettiest for 2019! As it came towards Imperial, a beautiful sculpted storm was present. At one point west of town, not only did the storm have a stunning appearance, but a partially rain wrapped tornado became visible. The cone shaped twister was on the ground for a few minutes before wrapping in rain again as we lost visibility of it. An amazing day with gorgeous storms and a few tornadoes! Enjoy the photos below!

May 26th Southeast Colorado Tornadic Supercell

May 26th ended up being an exciting Colorado storm day! We captured a tornadic supercell just north of Lamar that had a brief pretty white elephant trunk shaped tornado. The day started out really messy as numerous elevated thunderstorms formed over eastern Colorado. An existing boundary that was visible underneath the elevated storms would set the stage for late day supercells, one of which was long lived and quite nice. By mid afternoon we were watching storms west of Lamar. They were in drier air with high cloud bases and could never really get intense.

Further east towards Lamar one storm rapidly developed along the boundary and tracked northeast. Moisture, instability and wind shear was much better in this location! It quickly dropped a funnel that persisted for nearly 10 minutes, touching down a couple times but causing no damage in the rural areas. It moved northeast and weakened as a second storm approached from the southwest and became tornado warned. It tried hard several times to produce but in the end it never did. We followed it northeast to the Kansas border before dropping further south and east into Kansas for late evening lightning.  An exciting day in Colorado and western Kansas! Enjoy the pics below. (First bright pic of white tornado is a cell phone shot)

May 17th Southwest Nebraska Tornadic Supercell

May 17th was an amazing day. Storms formed along a dryline in northwest Kansas and northeast Colorado and pushed into southwest Nebraska. One supercell approached McCook, NE and dropped a few tornadoes along the way. Strong wind shear, great instability and good surface moisture set the stage for this and other storms to form. The first tornado was quite pretty as it tracked just west of town. A couple more formed in the hills where roads were bad and thus not greatly visible from where we had to intercept them. None the less the storm was a very pretty supercell and long lived. It persisted for several hours before weakening north of Kearney, Nebraska.

May 1st Seymour, Texas Tornadoes

May 1st was a great setup. An outflow boundary lay in northern Texas with 70 degree dewpoints to its south. High CAPE, strong shear and lift along the boundary would cause several tornado warned supercells to form. However, only one would produce any tornadoes. We sat in Seymour for a couple hours waiting for initiation to occur at the triple point just southwest of town. Soon, a storm developed and shot to 55,000 feet in height. We blasted south through intense rain and lightning only to be greeted by the first tornado about 7 miles to our west. Poor road networks prevented us from getting close to this beauty! It lasted about 10 minutes and dissipated. Not long afterwards, a new meso formed to the east and started rotating intensely. A multivortex tornado touched down and lifted several times before a slender cone tornado formed. It bounced around the ground for a few minutes before lifting. We were about 1 mile from it when it occurred! You could hear the waterfall sound of the rear flank downdraft winds as it crossed to highway just north of us. Eventually the storm weakened as we blasted west to another tornado warned supercell. This storm became high precipitation quickly, but it tried hard to drop another tornado to our north. I cannot confirm if it did or not based on our position, but it spun wildly. Enjoy the photos!