Deviant tornado motion with this supercell.

Not good.

Low level meso has intensified.

Increased size sorting in this supercell, appears to be ingesting more streamwise vorticity.

There were some opportunities for cell mergers and interactions to potentially take a few supercell up a notch. But appears that area of upper-level divergence moved ahead right along the cold front, provide lift that allowed storms to congeal and promoted upscale growth. But, still very strong.

Supercell in southern Iowa showing a ZDR arc, with favorable storm motion vector perpendicular to ZDR-KDP core vector. Also started to turn right a bit with a clean inflow, good chance for low-level meso to strengthen.

Impressive supercell west of Wichita. Mesocyclone had a notable deviant motion as it started to occlude. This may recycle though, as it looks like another inflow stream was strengthening.

😅😅

Yep, outbound comms issue at a WFO can result in some terminals not going out to the world. Not sure of their specific setup there.

Could be possible that an outbound comms line is down, but the office can still see everything.

That's CM1 in a nutshell.

0-3km CAPE was very much lacking ahead of this line. There were periods of the line getting behind the outflow, then caught back up to it, then back behind. Very difficult to get any kind of stretching for long periods of time. Even if no detectable tornadoes, probably a lot of 70+ MPH winds.

LEWP moving across Central IL. Increasing areas of AzShear in vicinity of surges. Plenty of wind behind it.

Line segment south of Springfield IL is starting to show signs of trouble as well, especially with the RIJ.

Strong surge and UDCZ entry point. This line has really tapped into something now.

Several surges helped get this line back into balance in some segments. It's trying really hard to rotate. Background kinematics are there.

Wondering if the instability is not enough. Seeing a scan or two that starts to look iffy, then just collapses. Not enough to stretch anything or maintain it long enough.

Strong background 925mb-850mb winds being transported downward on the backside of this QLCS, creating several surges. Seeing increasing cell mergers on the leading edge. Increasing potential for mesovortex generation for a lot of this line in eastern Missouri over the next 45 minutes.

Supercell moving through Kankakee IL, and has been producing monster hail. The negative buoyancy has been strong. However, it has taken another hard right turn, with an increase LL azimuthal shear. Stronger FFD gust front could also increase storm induced vorticity increasing the tornado threat.

@cameronjnixon.bsky.social Any thoughts on large-hail being driven by a low-level meso, buy buoyancy making a tor hard to sustain on this supercell?

Supercell east of Pontiac IL took a good right turn toward the warm sector, and had a lower-level meso ramp up. However, seeing a ZDR arc disruption, suggesting negative buoyancy may be a bit too much now tornadogenesis. However this still presents a tor threat with the background streamwise vort

Watching this occlusion process near an 88D has been fascinating.

This type of environment is what has me satisfied with the changes made this season.

Something different from the Unidata workshops?

Congratulations on the position, and glad to have your skill and expertise back in the agency.

that would make things a lot more efficient, but were not available then.

But even using available tools 10 years ago that I was not using, I could have been much more robust with my analysis and more efficient at performing it.

I would keep the same hypothesis, and the big picture method I would keep. There is a lot I would do differently with Python and my output organization. And this would mean using Python and netCDFs in ways that were possible 10 years ago. There is a lot of new Python tools available today

I feel some of those have to go to aviation museums. I mean for decades that was part of commercial flight culture.

Any sleet at all being reported? That's a pretty sharp freezing layer under that melting layer.

Welcome to town!