MD 0709 CONCERNING TORNADO WATCH 181…182… FOR SERN KS / NERN AND CNTRL OK
MESOSCALE DISCUSSION 0709
NWS STORM PREDICTION CENTER NORMAN OK
0627 PM CDT SUN MAY 19 2013
AREAS AFFECTED...SERN KS / NERN AND CNTRL OK
CONCERNING...TORNADO WATCH 181...182...
VALID 192327Z - 200030Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 181...182...CONTINUES.
SUMMARY...INTENSE TORNADO THREAT WILL CONTINUE OVER CNTRL OK
EXTENDING NEWD INTO NERN OK AND SERN KS.
DISCUSSION...RADAR MOSAIC SHOWS SEVERAL DISCRETE SUPERCELLS FROM
SERN KS ON THE SRN END OF A SQUALL LINE WITH ANOTHER CLUSTER OF
DISCRETE SUPERCELLS FROM 35 MI W OF TUL...5 NNW CQB...AND 25 ESE OF
OKC. KTLX VWP SHOWED A PRONOUNCED SICKLE SHAPED HODOGRAPH /350
M2/S2 0-1 KM SRH/ WITH A MARKED INCREASE IN LOW LEVEL SHEAR PRIOR TO
THE PASSAGE OF THE NOW CONFIRMED TORNADIC SUPERCELL. VERY INTENSE
ROTATIONAL VELOCITIES WITH THE CLEVELAND COUNTY/POTTAWATOMIE COUNTY
STORM...COMBINED WITH A FAVORABLE CONVECTIVE MODE AND NEAR-STORM
ENVIRONMENT...WILL LIKELY YIELD A HIGH PROBABILITY FOR CONTINUED
CYCLING OF INTENSE TORNADOES DOWNSTREAM OF THIS STORM. THE 105 KT
ROTATIONAL VELOCITY AT 0.5 DEG AS OF 2320Z...IS HIGHLY INDICATIVE OF
A VERY INTENSE/POTENTIALLY VIOLENT TORNADO WITH THIS STORM.
FARTHER NE OVER NERN OK...KINX VWP SHOWS 50 KT SLY FLOW AT 1 KM AGL.
ALTHOUGH THE HODOGRAPH STRUCTURE IS NOT AS IMPRESSIVE AS KTLX...300
M2/S2 0-1 KM SRH WILL MORE THAN SUPPORT THE THREAT FOR LONG-LIVED
SUPERCELLS CAPABLE OF DAMAGING TORNADOES.
..SMITH.. 05/19/2013
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...TSA...ICT...OUN...
LAT...LON 37389685 36819737 35309742 35239675 35289634 36089577
37159576 37489617 37389685
via SPC Forecast Products http://www.spc.noaa.gov/products/md/md0709.html
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