5/10/10 NOW: KS, OK, TX

[Jason Persoff]

Huge damage radar return approaching Okemah, OK.

 

[David Rundle]

Large tornado on the ground heading towards Ardmore.

 

[Andrew Francis]

New storm just fired up west of Newalla along I-40. Showing rotation... This is exactly the location where the tornado earlier went through and hit that truckstop and overturned dozens of vehicles.

 

[Chad Cowan]

Just heard a report on Tulsa radio that a DOW truck has been in an accident. No idea where or how bad.

 

[Kevin Bowman]

I40 is now shut down at choctaw (sp) road, heavy damage

 

[John Massura]

Called work (just east of the NWC, across the parking lot), they said any damage to the NWC was due to inflow winds, and would probably have been minor. Norman mesonet had reported 64mph inflow gusts earlier.

 

[Matthew Havin]

Just got off the phone with Jeff Piotrowski.... reporting a monster wedge tornado west of Weleetka, Oklahoma.

UPDATE: Now reporting multiple-vortex tornado, maybe 1/2 mile wide!

 

[Will Tinder]

KTUL out of Tulsa is reporting law enforcement has confirmed fatalities at the truck stop hit in SE Oklahoma City.

http://www.ktul.com/news/stories/0510/734581.html

 

[Brian McKibben]

According to the SPC Mesoanalysis the STP for the Effective layer maxed out at beyond 12. We don't know how high it actually is bc the contours stopped at 12. It could seriously be 20 or 30.

All the parameters for this setup are just insane.

 

[Michael Riedl]

According to the SPC Mesoanalysis the STP for the Effective layer maxed out at beyond 12. We don't know how high it actually is bc the contours stopped at 12. It could seriously be 20 or 30.

All the parameters for this setup are just insane.

Agreed. Helicity values are 750+ and EHI was at 25 earlier today. They are now down to 20 but still even that is off the charts.

 

[Darren Addy]

It appears that the SPCs experimental mesoanalysis page is in failure mode.
Does someone have a different URL, or is this the correct one?
http://www.spc.ncep.noaa.gov/sfctest/new/

 

[rdale]

According to the SPC Mesoanalysis the STP for the Effective layer maxed out at beyond 12. We don't know how high it actually is bc the contours stopped at 12. It could seriously be 20 or 30.

All the parameters for this setup are just insane.

It was just over 20 about 2 hours ago.

 

[Bobby Lang]

Kake (Wichita area TV station) has posted a short video of a wedge tornado near Hunnewell, Kansas on their website. Link.

 

[Kevin Bowman]

impressive video from WGN TV in Chicago of a large multiple vortex tornado..

http://www.chicagoweathercenter.com/severe/stormchase/

 

[Ryan Pfeifer]

TWC posted some really great video of a multi-vortex starting up earlier:

http://www.weather.com/outlook/videos/17260

EDIT: They now also have a great helicopter shot of the Norman tornado.