William Combes
And there is a nice upper level feature pulling out of SW Texas right now that should assist. You can see it clearly on the visible sat.
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4/21/08 FCST: IA/IL/MO/TX/OK/AR/TN
- Thread starter Brandon Sullivan
- Start date
Brian McKibben
EF3
There is a developing cumulus field along and just west of I-35 from the TX border up to OKC. In some frames it looks as if the cu are starting to build, but then die down by the next frame. If the cap can break, I would expect storms to become rapidly severe.
RUC forecast shows storms erupting along the dryline by 00z with at least 4000 j/kg of CAPE. One inhibiting factor I am seeing is the lack of 850 moisture just east of the dryline.
RUC forecast shows storms erupting along the dryline by 00z with at least 4000 j/kg of CAPE. One inhibiting factor I am seeing is the lack of 850 moisture just east of the dryline.
Alex Lamers
EF4
Interesting...well it appears things are looking a bit better a bit further north. Southwest McClain County is where things appear to be coming together. The ob there and in Norman have recently had dewpoints shoot up ~5F with southeasterly winds now. Meanwhile all 3 obs in Grady county have SW winds with dewpoints in the 40s. Good convergence and now a bit more juice out ahead of that area.
That being said...looking west...cu not all that impressive. The cap appears to be holding. All the other cu nearby have been squashed.
I think we're in crunch time. If stuff doesn't go in another hour...our chances of an impressive isolated supercell are probably over. Stuff may fire in far NC OK and E KS and then sag south overnight...but obviously not chaseable and probably linear stuff anyways.
AJL
That being said...looking west...cu not all that impressive. The cap appears to be holding. All the other cu nearby have been squashed.
I think we're in crunch time. If stuff doesn't go in another hour...our chances of an impressive isolated supercell are probably over. Stuff may fire in far NC OK and E KS and then sag south overnight...but obviously not chaseable and probably linear stuff anyways.
AJL
Shane Adams
Nice boundary collision in progress in this area, and the cu have multiplied in this same area. Cap may be holding, but this is definitely where the attempt is being made. I'm a few satellite updates away from taking a short drive west.
Alex Lamers
EF4
Yeah...actually looking at KTLX loop (and I just noticed this when I accidentally clicked the loop button 
) you can see what appears to be two boundaries getting ready to collide between Norman and Chickasha. The western one appears to be the dryline...the eastern one appears to be the surge of low-level moisture.
As this eastern boundary passed Norman and the McClain County mesonet obs...their dewpoints went up significantly.
If the moisture is getting ready to hit the dryline...we could see something pop almost right over Norman
That would be nice since gas is expensive.
AJL
) you can see what appears to be two boundaries getting ready to collide between Norman and Chickasha. The western one appears to be the dryline...the eastern one appears to be the surge of low-level moisture.As this eastern boundary passed Norman and the McClain County mesonet obs...their dewpoints went up significantly.
If the moisture is getting ready to hit the dryline...we could see something pop almost right over Norman
That would be nice since gas is expensive.AJL
Brian Emfinger
EF4
Yeah...actually looking at KTLX loop (and I just noticed this when I accidentally clicked the loop button
As this eastern boundary passed Norman and the McClain County mesonet obs...their dewpoints went up significantly.
If the moisture is getting ready to hit the dryline...we could see something pop almost right over Norman
AJL
I was just about to post about that. There are some cu right there where the two boundaries are coming together but if it doesn't go within the next 15-30 minutes with that boundary collision ongoing then its probably just not gonna happen. If I was in Norman (next year this time I will be!) I would definitely be ready to go though. Anyone in Norman or near there able to physically see those cu?
Alex Lamers
EF4
On campus and I can see them just past the dorms. Starting to get some vertical extent.
AJL
Angie Norris
EF5
I looked outside about 10 minutes ago and saw one tower struggling to go up just west of here. It's gone now. Mesonet is showing 83/65 here in Norman with SE winds. Chickasaw is showing 90/42 with SW winds.
I think the cap is winning.
I think the cap is winning.
William Combes
We're between Dibble and Purcell and have TCU growing pretty rapidly to our SW
Jeff Piotrowski
EF3
Now
New echo NW EMP at 7:05 PM looks like the front from EMP to END about to light up. Also like the boundary in OKC moving west also looks good.
All we need is one storm!!
Watch just iussed OK/KS.
JP.
New echo NW EMP at 7:05 PM looks like the front from EMP to END about to light up. Also like the boundary in OKC moving west also looks good.
All we need is one storm!!
Watch just iussed OK/KS.
JP.
Mike Johnston
EF5
Cell SW of Purcell, OK bears watching w/ cloud tops pushing 50K ft. Hopefully, there are a few chasers out watching that development. Really nice convective parameters per the SPC mesonanalysis in that area.
Looks like potential for some activity also now along Kansas Turnpike near Matfield Green just ahead of some kind of boundary very evident on ICT radar.
Looks like potential for some activity also now along Kansas Turnpike near Matfield Green just ahead of some kind of boundary very evident on ICT radar.
Patrick Romans
I've been watching those boundaries collide on ICT as well. Sitting her about 30 miles to the east I can see the line of CU trying to build but the towers are still puny. I'm showing a dewpoint of 60 here with no wind.
