SWOMCD
SPC MCD 182348
ARZ000-MOZ000-TXZ000-OKZ000-190045-
MESOSCALE DISCUSSION 2191
NWS STORM PREDICTION CENTER NORMAN OK
0648 PM CDT SUN SEP 18 2011
AREAS AFFECTED...ERN OK...NERN TX...AR
CONCERNING...SEVERE THUNDERSTORM WATCH 852...854...
VALID 182348Z - 190045Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
852...854...CONTINUES.
QUALITY AIR MASS HAS YET TO BE OVERTURNED ACROSS THE ARKLATEX...NWD
INTO CNTRL AR AHEAD OF SLOWLY CONGEALING PRE-FRONTAL CONVECTION.
DEEP LAYER SHEAR IS NOT PARTICULARLY STRONG ACROSS THIS REGION AND
WITH MEAN WIND VECTORS ON THE ORDER OF 20-25KT IT/S NOT APPARENT
THAT FAST MOVING LINE SEGMENTS OR BOWS WILL BE AN ISSUE WITH THIS
ACTIVITY. FOR THIS REASON IT WOULD SEEM LARGE HAIL IS THE PRIMARY
CONCERN FOR THE NEXT FEW HOURS.
..DARROW.. 09/18/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LZK...SGF...SHV...TSA...FWD...OUN...
LAT...LON 36989510 36989294 35339428 35329235 33609382 33629571
33839554 33839757 36989510
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