8/15/07 NOW: IN

[Bob Hartig]

Anyone watching the line moving through northwest Indiana? The tail end has developed a hook and has been showing consistent rotation. It's also turning right relative to the rest of the line, and it's moving into higher helicities.

 

[Danny Neal]

Tornado warning on it now.....and of course there would be because I just gave up on it once it hit the IL/IN border. Very nasty looking HP supercell. Had ALOT of lightning and heavy rain as it hit me.

 

[David Draun]

Yup, that's a tail end charlie supercell if I've ever seen one. The core is pushing 70dBz and I see two weak TVS signatures of 33 and 34 kts respectively. The storm has a great inflow notch on it. It appears that this storm is tapping surface-based parcels, so it could drop a tube. It is now TOR-warned. The VIL is also nearly maxed out at a very ugly 70-75, so there could be some nasty hail too. Anybody checking it out? In addition to helicities, instability also really increases the farther south you go.
That storm began as a little shower over me, then caused a rain-delay at Wrigley not too long after that lol.

 

[Bob Hartig]

Seems likely to intensify, too. What a bruiser. Who'd a thunk it? BTW, a little while ago the reflectivity was showing 77.5 dbz on GR3.

 

[rdale]

Gary had a measured gust to 69mph (NWS must have missed it since no LSR) and the cell is popping an AE TVS still... SPC mentioned the elevated nature of the storms but there are so few surface obs in Indiana that it's hard to hold off issuing a TOR until otherwise known.

VIL's are off the scale (> 127)

 

[Bob Hartig]

Currently there are three TVSs, with one showing a max delta velocity of 109 knots. Storm is centered over North Judson, IN.

 

[Danny Neal]

Listening to spotters from Porter County. Reported golfball hail and numerous trees and powerlines down near Kouts. Storms trying to backbuild into my area again. GR3 showing 3 in hail markers.

 

[MatthewCarman]

Can someone please post a GRLevel3 image of this storm? Very intense looking on radar. Any reports of a tornado with this storm?

 

[Danny Neal]

Hearing alot of damage reports VIA Porter county storm net around the La Cross area. State road 8 shut down in that area. My guess due to straight line winds as I have not heard any confirmation of tornadic activity. Supercell still holding its own as it heads for N Logansport and eventually Kokomo/Marion areas.

 

[Bob Hartig]

RUC shows tail end has moved into the neighborhood of 175/400 1km/3km helicities. Still sprouting TVSs, one showing 121 knots MDV, but the CAPE has dropped way down. Wonder how much juice this thing will find to sustain itself as it moves southeast toward decreasing CAPE.

 

[rdale]

Can't imagine it'll go on too long, only TOR report was from PD well away from where one could have been (not on the big cell, but the northern one, and well back into the heavy precip).

 

[Danny Neal]

Hearing reports of a tornado in the town of Argos and now just read the warning from NWS that "confirms" it. Storm looked like it was bowing out the past few scans. Tail End Charlie spit a pretty nasty Rear Flank Gust front as well and is still holding strong but would imagine it would be consumed by the other storms.

 

[Jim Hunt]

I am getting ready to head out for Cass and Howard Counties. If you want a live scanner stream with law enforcement and spotters, check out - http://www.scankokomo.com/

 

[rdale]

Looks like you'll be behind all the good stuff - it'd be to your east. Kind of surprised this trekked all that way with no tornado reports and minimal sevwx of any kind, it's certainly not a highly populated area but enough (and enough spotter coverage.)

That cell itself should keep going for a while but I can't see the tor threat ever looking that good. Seems to be a good dose of heavy rain in store.

 

[Robert Dewey]

Seems likely to intensify, too. What a bruiser. Who'd a thunk it? BTW, a little while ago the reflectivity was showing 77.5 dbz on GR3.

Quite suprisingly, the NSSL WRF strikes again. It's typically spot on, and even at 30 hours: http://www.nssl.noaa.gov/wrf/rflslp30.png