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Potential tornado event in South Dakota

Posted At: August 11, 2006 @ 6:39 PM
Posted By: Reed Timmer
Related Categories: Tornadoes
Conditions appear to be coming together for a mini tornado outbreak in eastern South Dakota tomorrow (Saturday) afternoon and evening.   Substantial instability, an unseasonably strong low-level jet, insane moisture, and a potent mid-level jet streak will set the stage for explosive supercell development after 4 pm in central to eastern SD.  The presence of any outflow boundaries from overnight storms will also enhance the threat for tornadoes.   I left Norman at 6 pm this evening for a target in eastern South Dakota, once again without Joel (who is very close to having his profile removed from this site due to lack of stormchasing passion).   For those interested, the WRF forecast 0-1 and 0-3 km helicity, CAPE, CIN, and 500 mb wind for tomorrow afternoon/evening are displayed below.  The 0-1 km helicity values of 150-200 are sufficient for large tornadoes, especially with the presence of outflow boundaries.  Tomorrow could be the apocalypse.

0-1 km Helicity
0-3 km Helicity  
850 mb Wind
CAPE
CIN
500 mb Wind

Stay tuned to the StormWatch player (upper right) for videotaped updates on our progress throughout the chase.

Entry Comments

Potential tornado event in South Dakota Comment Posted By Simon | August 12, 2006 @ 2:25 AM #

Reed needs to head north or west to see anything worth while on Saturday. There will be too much cin in eastern South Dakota.

Potential tornado event in South Dakota Comment Posted By Dean | August 12, 2006 @ 9:43 AM #

Personally I think meteorologically apocolypitc episodes appear possible today in SD. Goodluck to the storm gang.

Potential tornado event in South Dakota Comment Posted By Cortney Timmer | August 12, 2006 @ 12:22 PM #

Concentrate

Potential tornado event in South Dakota Comment Posted By Dick | August 12, 2006 @ 1:45 PM #

Storms went up yesterday in shit midlevel flow. An extra 10 knots isn't going to hurt today. Good luck guys.

Potential tornado event in South Dakota Comment Posted By Susan Tolbert | August 12, 2006 @ 4:39 PM #

I saw your video and maps - all are working!!!
Concentrate

Potential tornado event in South Dakota Comment Posted By Adam | August 13, 2006 @ 1:36 PM #

Just a quick question from a newbie chaser. How much did the gas up to South Dakota from Norman, OK cost you?

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