Wednesday 3 August 2016

5/25/2016 - Chapman, KS EF4 Tornado

Posted: 02 Aug 2016 12:12 PM PDT
This was an unusual day in that a slight risk with a 2% tornado risk went on to produce a long-track violent tornado, of which I witnessed the latter half of its life-cycle.  Spent most of the day thinking the area from McPherson to Wichita would be the hot spot, getting suckered south and east of El Dorado to a long-lasting LP with a base that could've fit within a high school gym. Meanwhile, a long-lived supercell -- and storm of the day -- had formed near Salina. Keeping a radar eye on that storm, while holding firm on this southern LP thinking it was going to eventually take-off, was a mistake. Finally, we blasted north toward the I-70 storm, taking in the Flint Hills about as quick as one can with a mediocre internal combustion engine.  It was a long slog up, but we eventually caught eye of the tornado near Enterprise, KS.  We positioned north of Detroit, KS and took in the classic tornadic supercell for a bit, before having to scurry east and south as the bear came munching. Stopped a few times -- once northwest of Chapman, another east of Chapman, and then south of Junction City -- to view the beast, which would alternate from rain-wrapped to visible. Watched the tornado dissipate south of Junction City from a perch on US-77.

Stitched panoramic north of Detroit, KS


Tornado becoming wrapped and nearing I-70, northwest of Chapman, KS.
Stitched pano with Chapman, KS in valley ahead of tornado. 





Saturday 30 July 2016

5/24/2016 - Dodge City, KS Supercell and Tornadoes

Walker's Travels


Posted: 29 Jul 2016 03:06 PM PDT
May 24th was just one of those days where that atmosphere decided it was going to throw some nice ingredients together and make a nice, long-lived, slow-moving tornadic supercell.  This enhanced day featured a surface low, dryline, and outflow boundary with steep lapse rates, healthy CAPE, and strongly curved hodos. I began the day in Woodward, OK and slid slowly to Buffalo, then Sitka, KS. West of Sitka, I did get a little antsy due to the ongoing tornadic storm well to the north, up near Scott City.  Satellite showed nice cu and convergence occurring near Meade, so I kept (impatiently) holding along the US 160-283 corridor.  Eventually, as I was sitting north of Minneola, cells began to form to my south. I double-backed and took up shop southwest of Minneola, watching as the storms slowly gathered strength, with three distinct bases consolidating into what would become the storm of the day. The rest is well documented by the hundreds of chasers on the event, so I won't belabor the discussion. I purposely stayed in spots a long time to take in the evolution and structure, trying not to rush after the mesos. When I did take off to the north a couple times, I nearly smacked a deer once, and "enjoyed" a little bit of Kansas mud on another jaunt. At Dodge, I wrapped around town, not wanting to go through populated areas after my El Reno lesson. I witnessed a couple more tornadoes as I drove up to Spearville. I tried to intercept another tornadic storm near Kinsley, but the persistent core ahead didn't permit.  Ended the day in Pratt.

Initial tornado sequence northwest of Minneola, KS. See movie below for tornadogenesis.









   








Second large tornado now southwest of Dodge City, with meso to east producing two squirrelly tubes.



Occlusion in process with rope to left, and new tornado in meso to east.
 

While the chaser traffic was significant this day, must folks were well behaved (from my perspective). Though I did have chasers roll up on me during the early stages of the event and, literally, block my view -- with no consideration of someone who was there long before they hopped on the scene. Naturally, these were the my-chase-vehicle-is-compensating-for-a-lack-of-something types.  Otherwise, I was baffled by the ultra-wide loads and truck traffic that continued in the midst of all of the tornadoes. 
Tornado on west side of Dodge City, with another, eventual tornadic, meso to the east.

Downtown Dodge City to the right...


Taken while driving around the southeast Dodge bypass, near the airport entrance. That's a stationary aircraft that's non operational and signifies the airport entrance.

KDDC radar with tornado.

Tornadoes continued to form/track well to the north, but now losing some visibility due to reluctance to take lonely US 283 north due to the hail cores in multiple quadrants.

Last tornado, as seen north of Spearville.

Evening scenes following second, tornadic storm near Kinsley, KS


Time-lapses of dashcam, go-pro clip, and DSLR sequences.

Map of the day's drive ... starting in Woodward and ending in Pratt.

Saturday's U.S. Severe Weather Threats

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