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Plains tornado threat Mon 5/27-Fri 5/31


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Lovely! I'm assuming that was originally the Purcell cell and is now near Tribbey and Macomb? That's what we're going towards but are currently on the wrong side of it.

Yep tho it might be petering out. We are going to drop south again.
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MESOSCALE DISCUSSION 0886
   NWS STORM PREDICTION CENTER NORMAN OK
   0523 PM CDT THU MAY 30 2013

   AREAS AFFECTED...EXTREME ERN OK THROUGH THE NWRN HALF OF AR INTO SRN
   MO

   CONCERNING...TORNADO WATCH 253...

   VALID 302223Z - 310030Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 253 CONTINUES.

   SUMMARY...THREAT FOR ISOLATED TORNADOES...DAMAGING WIND AND LARGE
   HAIL WILL PERSIST INTO MID EVENING FROM ERN OK...MUCH OF WRN AR INTO
   SRN MO. THE GREATEST SHORT TERM TORNADO THREAT EXISTS WITH STORMS
   FROM EXTREME SERN OK INTO SWRN THROUGH WCNTRL AR...WITH A SECONDARY
   AREA FROM NERN OK...NWRN AR INTO SWRN MO.

   DISCUSSION...THIS EVENING...WHAT APPEARS TO BE A WEAK WARM FRONT OR
   CONVECTIVELY ENHANCED BOUNDARY EXTENDS FROM SRN AR INTO SERN OK.
   NEAR SFC WINDS ARE BACKED TO ESELY JUST NORTH OF THIS BOUNDARY. 0-2
   KM HODOGRAPHS ARE MAXIMIZED FROM EXTREME SERN OK INTO SWRN AR AT THE
   INTERSECTION OF THE LLJ AND THE BOUNDARY. HOWEVER...HODOGRAPHS ARE
   ALSO MODERATELY LARGE FARTHER NORTH INTO NWRN AR...SWRN MO AND NERN
   OK ALONG AND JUST WEST OF THE STRENGTHENING LLJ AXIS. STORMS WILL
   LIKELY CONTINUE DEVELOPING OVER SCNTRL AR WITHIN ZONE OF ISENTROPIC
   ASCENT NORTH OF THE WARM FRONT WHERE STORM RELATIVE HELICITY WILL
   CONTINUE TO SUPPORT LOW-LEVEL MESOCYCLONE DEVELOPMENT AS THE LLJ
   INCREASES. SOME SUPERCELL STRUCTURES SHOULD ALSO PERSIST IN BROKEN
   LINE FROM SWRN MO INTO NERN OK...AS WELL AS WITH THE MORE DISCRETE
   ACTIVITY JUST AHEAD OF THE LINE.

   ..DIAL.. 05/30/2013

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The radar presentation of the storms today are highly reminiscent of those on April 18, with the highly crooked/angular appendages rather than smooth hooks. The meso that was issued earlier has mention of the LLJ coming into play later, so I'll wait on that before I give up on today.

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