SWOMCD
SPC MCD 190331
ARZ000-LAZ000-TXZ000-190430-
MESOSCALE DISCUSSION 2193
NWS STORM PREDICTION CENTER NORMAN OK
1031 PM CDT SUN SEP 18 2011
AREAS AFFECTED...ARKLATEX INTO CNTRL TX
CONCERNING...TORNADO WATCH 853...854...
VALID 190331Z - 190430Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 853...854...CONTINUES.
NUMEROUS CELL MERGERS AND THUNDERSTORM CLUSTERS HAVE EVOLVED INTO A
SQUALL LINE FROM SWRN AR...SWWD INTO CNTRL TX. THIS ACTIVITY IS
PROPAGATING SEWD AT ROUGHLY 25KT WITH A FEW SURGING SEGMENTS
ADVANCING UPWARDS OF 30KT TOWARD NWRN LA. LATEST RADAR DATA
SUGGESTS HAIL IS THE MOST LIKELY SEVERE THREAT...ESPECIALLY WITH THE
CONVECTION OVER CNTRL TX...BUT LOCALLY DAMAGING WINDS ARE ALSO
POSSIBLE AS SQUALL LINE IS SURGING A BIT AND HAS AN OVERALL
EXPANDING PRECIP SHIELD. GIVEN ITS CURRENT SPEED IT SHOULD ADVANCE
TO A POSITION FROM NCNTRL LA...ARCING SWWD TO THE CWA BORDER OF
FWD/HGX BY 06Z.
..DARROW.. 09/19/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LZK...SHV...HGX...FWD...
LAT...LON 32199797 32879505 33849366 33389264 31659360 31189685
32199797
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