6/6/07 NOW: ND/SD/NE/KS/MN/IA/MO

[John Peters]

Tornado warning in effect for campbell county in Wyoming. Tornado reported on the ground by spotters in the area. Also, a new tornado watch has been issued for north central Nebraska and central SD. Tornado probabilities are 70/40. SVR warned cell in near Pine Ridge SD seems to have weak rotation.

 

[Kyle Masters]

Looks like that cell over the SD Badlands (pine ridge) is getting a nice falange on it's southern side, decent rotation firing up in her (gate to gate -41/+35), showing up as a meso on GRLevel3, wouldn't be suprised if a wall shows up pretty soon.

And I feel sorry for Gillette, WY right now.

 

[Kyle Masters]

That cell near Pine Ridge (6 S of Kyle) just got a big purple box around it, radar signature of the storm is relatively weak though.

EDIT: Nevermind, the last sweep of the radar gave it a pretty good radar signature.

 

[Marko Korosec]

yeah tornado warning just issued on this storm sw of Kyle, SD...some pretty nice rotations on lower tilts, 70kt g2g shear right now.

 

[Kyle Masters]

AT 315 PM MDT...A TORNADO WAS REPORTED 13 MILES NORTHWEST OF
ALLEN...OR ABOUT 25 MILES NORTHWEST OF MARTIN...MOVING EAST AT 20
MPH.

They acutally issued a box before the storm was even where the box is. Kudos to NWS Rapid City

 

[John Peters]

reports of a tornado on the ground in central Shannon County.

Storm doesn't look too spectacular on radar

 

[Donald Giuliano]

Just talked to Reed Timmer, who is on the storm near Martin, SD. He confirmed a tornado is on the ground with that storm, between Martin and Kyle.

 

[Kyle Masters]

Tell him to take good pictures. I'm stuck east waiting for the squall line to come. He say relative size/type of tornado? (i.e. rope, wedge, etc)

 

[Donald Giuliano]

It had just touched down when I talked to him, he asked me to call Rapid City NWS and let them know as he hadn't heard of any reports yet and didn't have their number. His group then called me back a few minutes later, and from what I could gather the tornado is more than just a brief spinup, but nothing monstrous as of yet.

 

[Jeff Snyder]

Just so this doesn't turn into a chat-room, please remember that posts containing only something like notifying others of a warning or watch is not necessary, assuming most of us are well aware of the warning and radar situation. This is not to discourage posts, but please try to add some more substantive thoughts or comments about the situation, storm, etc. Relaying in-field spotter reports is acceptable and welcome, assuming you can add more than a one-liner.

Too bad we had this cirrus today... It looked like the convective temp on the LBF 18z sounding was somehwere in the upper-80s to near 90, which should have been attainable if we hadn't had limited sfc heating from the cirrostratus deck. Granted, LCLs would have been very high, but high-based storms are btter than no storms. Still think there's a possibility of initiation farther east, as dryline showing up nicely on KLNX radar... Where are those 65-72F tds the NAM promised? *rolls eyes* And sad thing is that the NAM persisted in forecasting such unreasonably high Tds (see one of my FCST posts from a day or two ago). But to the ongoing situation...

 

[Kyle Masters]

Looking at just the radar, it would look like this storm anchored itself in some sort of boundry, apparently an outflow, and took it's massive 70* right turn to anchor itself in it. It's following pretty perfectly, and the hook/rotation is right where that boundry meets the storm, so if it keeps up, has the writings of a long laster. Oddly enough, SPC Mesoanalysis doesn't have horribly impressive dynamics out there for tornadogenesis, really suprised that it lasted more than 5 minutes actually. At least your buddy is getting some good action out there.

Off topic (sorry) could someone please send me through PM the link to the BUFKIT page, I revamped my computer and lost it.

 

[Blake Michaleski]

Jeff, yeah the NAM was really overdoing the moisture...although 66 at Pierre isnt too bad. The temp of 82 though is promoting somewhat sizeable TdD's. Those kind of Td's just aren't widespread.

I think one thing that should be noted of this event is just how deep this sfc low is. I'm seeing a few 980mb obs in NW Nebraska. This along with the nuclear cap inplace to the south is allowing the LLJ to scream northward. There are some very high winds occuring all through the plains.

 

[Bill Hark]

Just talked with Charles Edwards of Cloud 9 Tours. He observed a tornado at 3:15 MDT. The closest town is Interior, South Dakota on the east side of the Badlands. The tornado was described as a cone, then trunk and somewhat low contrast. The storm is moving slowly per Charles.

Bill Hark

 

[Paul Knightley]

Stu Robinson is chasing this - he called in a tornado to the NWS from this same storm.

 

[David Wolfson]

For those on the Kyle storm, from personal experience a few weeks ago, there is an excellent viewpoint at the top of a hill if one follows SD44 to its eastward turn to the east of Potato Creek, and continues straight south on the gravel road instead of making the eastward turn.