4/21/04 NOW: OK

[Jeff Snyder]

Well, I'm initiating a NOW thread as it appears that we are only a couple hours away from what could be an incredible event. SPC just issued an MCD valid across almost the entire state of OK, stating that a tornado watch will be issued by 20z (http://www.spc.noaa.gov/products/md/md0407.html). Instability is significant already, as even the RUC appears to be underforecasting CAPE. I would not be surprised to see a high risk on the 20z outlook...

And best of all, storm motions (Bunker's method) off the 12z ETA are only 20-30 kts!! So, it's a high instability, high shear day AND storms are only forecast to move at 20-30 kts! Now, if only the terrain was better....

 

[Dan Cook]

Let's hope OKC is spared this time.

If I had to guess, I'd put myself somewhere in SE OK.

 

[mikegeukes]

Severe Weather Event is over, removed information.

Mike

 

[Rich Pena]

SWEAT for OK

Hey can you guys help with this, I can't make since of this; why is SWEAT so low for OK, or does this change rapidly? http://twister.sbs.ohio-state.edu/severe/sweat.html please help...

 

[Jeff Snyder]

Re: SWEAT for OK

Originally posted by Rich Pena
Hey can you guys help with this, I can't make since of this; why is SWEAT so low for OK, or does this change rapidly? http://twister.sbs.ohio-state.edu/severe/sweat.html please help...

That graphic is from 12z, or 7am local time... That's why...

No public watch release yet... The aviation part is in, but haven't been able to get the 'public'/text version yet... Whatever the case, watch out for the monster hail. Mean storm motions are still forecast to be 20kts!

 

[Rich Pena]

Sweat Index

Here is a better map for SWEAT sorry guys: http://www.caps.ou.edu/wx/p/r/spmeso/adas/ even DFW area 531...

 

[Amos Magliocco]

I'm watching an area of enhanced cu in Caddo County right now. As of the last visible image, it still had the furrowed look of strong cap, but it is persistant and in an area of enhanced convergence northeast of the approaching dryline surge. Guess I'd be in Grady County right now looking west, or even staying on 35 for data/phone/north-south ability would be fine.

 

[Robert Dewey]

Public watch is in, and as I suspected its a PDS... http://www.spc.noaa.gov/products/watch/ww0098.html

Sure wish I was there for todays action, MI had yet another bust...

Robert

 

[Chris C Sanner]

Just stepped out, towers going up to my west (in velma). I'm heading it in around 30-40 minutes. Will be a huge day

 

[Chris C Sanner]

I stepped out just now again, these things are EXPLODING. This is going to be a very big day. Hope everyone is safe and I hope no Tornadoes go through populated areas today. But with a day like today, I dunno if that's possible

 

[Tim Vasquez]

Area of towering Cu NW of Chickasha trying to get it together. TLX radar showing some mid-level echoes developing south of Minco.

Tim

 

[Tim Vasquez]

Aww, look at the little baby tyke (3.5 deg scan). The strange thing is if it pulls together it may be in line to hit the Norman area or Moore.

[Broken External Image]:http://www.stormtrack.org/apr21baby.gif

 

[J.B. Dixon]

More convection trying to get organized to the south of Chickasha at this time.......and would be directly on a path for the OKC Metro. Ugh.

 

[Michael Shively]

Severe T-Storm Warning Issued for Western Oklahoma county...hope it doesnt turn torndadic....but it may


Looked at the SRM VEL on the 2.5 and 3.5 slice...looks like some rotation....very very bad

 

[J.B. Dixon]

The cell south of Chickasha is exploding......current speed is 30 mph, putting it on OKC's doorstep around 5:15. Norman and Moore should be ready for this one shortly. Hopefully conditions hold off for at least a little longer before these things TOR in a densely populated area. We could only be so fortunate.