SWOMCD
SPC MCD 052213
TXZ000-052315-
MESOSCALE DISCUSSION 0714
NWS STORM PREDICTION CENTER NORMAN OK
0513 PM CDT TUE MAY 05 2009
AREAS AFFECTED...NCNTRL TX
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 052213Z - 052315Z
TORNADO WATCH WILL BE REQUIRED SHORTLY FOR PART OF THE BIG COUNTRY
AND NCNTRL TX.
TSTM INITIATION APPEARS IMMINENT IN AREAS JUST NE OF KABI ALONG THE
NOSE OF A LOW-LEVEL THERMAL RIDGE. 20Z FWD SOUNDING WAS
CAPPED...BUT MODIFYING FOR AN 88/65 PARCEL YIELDS NO CAP AND OVER
3000 J/KG MLCAPE. EXPECT STORMS WILL RAPIDLY BECOME SUPERCELLULAR
GIVEN MAGNITUDE OF INSTABILITY AND AROUND 60 KTS OF BULK SHEAR.
FCST STORM MOTION OF 280-300 AT 20 KTS WOULD TAKE THE STORMS ALONG/S
OF THE WRMFNT LOCATED ALONG I-20...MAINTAINING VERY BUOYANT INFLOW.
VERY LARGE HAIL WILL BE LIKELY ALONG WITH A COUPLE OF TORNADOES.
ACTIVITY COULD BEGIN IMPACTING AT LEAST PARTS OF WRN/SRN PORTIONS OF
THE DFW METROPLEX BY MID-EVENING.
..RACY.. 05/05/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...FWD...SJT...
LAT...LON 32360063 33049912 33229817 33059719 32809687 32129695
32069705 31369845 31489936 31870055 32360063
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