9/6/07 NOW: NE/KS/IA

[Chad Cowan]

Interesting scenario unfolding as the LLJ begins to interact with upper level trough. Area of highest helicities is where these two elements are converging over ne KS, extreme se NE and into nw MO. Storms have managed to remain relatively discrete in a few locations despite advancing cold front.

TOR warned cell currently in Harlen CO, NE showing very strong rotation and a great radar presentation. I will post a grab here shortly. Initial cell developed ahead of line but was choked off by outflow just as the Harper cell began ramping up with a core to +73dbz.

I would expect an enhanced tornado threat over the next couple hours in se NE until the cells congeal into MCS's.

0z Sounding from Topeka:

 

[Jason Bolt]

The cell to the northwest of the TOR warned cell near Marysville, KS looks to be more organized than the warned cell. Nice couplet on the last few scans.

 

[cstrunk]

Impressive cell in Marshall/Nemaha Co's in NE KS at the moment. Radar shows a nice hook. NWS also says the storm is capable of producing hail to the size of baseballs. It looks to be engulfed by other storms soon. What does everyone else think of the situation? I have family in that area so I'm paying close attention.

 

[Eric Flescher]

Tecumseh, NE and Seneca, KS by 1:00 CT

Storm ETA
The selected storm cell is projected to reach 'Tecumseh, NE' at:
10:56 PM CDT

Storm Attributes
Possible Doppler Indicated Tornado No

Maximum Precip Intensity Very Heavy

Risk of Damaging Wind Low

Hail Chance 100%

Maximum Hail Size Marble Size

Storm Speed 39 mph

Storm Direction NorthEast

**
Storm ETA
The selected storm cell is not currently forecast to reach 'Seneca, KS' before 11:00 PM CDT.

Storm Attributes
Possible Doppler Indicated Tornado No

Maximum Precip Intensity Very Heavy

Risk of Damaging Wind Low

Hail Chance 100%

Maximum Hail Size Marble Size

Storm Speed 39 mph

Storm Direction NorthEast