SWOMCD
SPC MCD 270142
ILZ000-MOZ000-ARZ000-OKZ000-TXZ000-270315-
MESOSCALE DISCUSSION 0153
NWS STORM PREDICTION CENTER NORMAN OK
0742 PM CST THU FEB 26 2009
AREAS AFFECTED...SERN MO/SRN IL/SERN OK/MUCH OF AR
CONCERNING...SEVERE THUNDERSTORM WATCH 32...33...
VALID 270142Z - 270315Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
32...33...CONTINUES.
LOCALLY BROKEN/DISCONTINUOUS LINE OF THUNDERSTORMS CONTINUES MOVING
EWD ACROSS WW 32 AND 33. SEVERE THREAT CONTINUES.
LATEST SURFACE ANALYSIS CONTINUES TO SHOW THE MAIN SURFACE COLD
FRONT MOVING SEWD ACROSS THE OZARKS AND VICINITY. MIXED-LAYER CAPE
GENERALLY BELOW 500 MB ACROSS MO...AND 500 TO 1000 J/KG INTO ERN
OK/WRN AR CONTINUES TO SUPPORT STRONG TO LOCALLY-SEVERE STORMS ALONG
A BROKEN LINE OF CONVECTION ALONG THE FRONT.
SEVERAL REPORTS OF HAIL UP TO 1" IN DIAMETER HAVE BEEN RECEIVED THIS
EVENING...AND WITH DEEP-LAYER SHEAR AROUND 50 KT...A THREAT FOR HAIL
AND LOCALLY-ENHANCED WIND GUSTS WILL CONTINUE TO SUPPORT A SEVERE
THREAT OVER THE NEXT FEW HOURS.
WITH STORMS MOVING EWD AT AROUND 40 MPH...CONVECTION WILL BEGIN
MOVING OUT OF WW 32 IN THE NEXT 1 1/2 TO 2 HOURS -- WITH DOWNSTREAM
ISSUANCE INTO SRN IL/FAR SERN MO A POSSIBILITY.
..GOSS.. 02/27/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...PAH...ILX...MEG...LSX...LZK...SGF...SHV...TSA...
FWD...OUN...
LAT...LON 33829613 34769546 36479343 39869045 39898891 39458779
36508978 33819244 33829613
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