SWOMCD
SPC MCD 192334
TXZ000-OKZ000-KSZ000-COZ000-NMZ000-200030-
MESOSCALE DISCUSSION 1621
NWS STORM PREDICTION CENTER NORMAN OK
0634 PM CDT SUN JUL 19 2009
AREAS AFFECTED...SERN CO...NERN NM...OK/TX PANHANDLES
CONCERNING...SEVERE THUNDERSTORM WATCH 604...
VALID 192334Z - 200030Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 604
CONTINUES.
PORTIONS OF THE OK/TX PANHANDLE ARE BEING CLOSELY MONITORED FOR THE
POSSIBILITY OF AN ADDITIONAL SEVERE TSTM WATCH OR AREAL EXTENSION OF
WW 604.
RECENT RADAR IMAGERY DEPICTED TSTM ACTIVITY PRIMARILY CONCENTRATED
ALONG THE SANGRE DE CRISTO MTNS AND ACROSS THE RATON MESA. THE
LATTER AREA HAS SHOWN INCREASED SIGNS OF AMALGAMATING OUTFLOWS AND
THIS MAY COMMENCE THE OVERALL TRANSITION FROM WHAT HAS BEEN A
MARGINALLY SEVERE HAIL THREAT INTO MORE OF A DAMAGING WIND THREAT
THIS EVENING. 23Z SUBJECTIVE SURFACE ANALYSIS PLACED A
QUASI-STATIONARY FRONTAL BOUNDARY FROM HARDING COUNTY NM SEWD TO
NEAR 40 SW CDS. VISIBLE SATELLITE IMAGERY DEPICTS A HEALTHY SC FIELD
NE OF THIS BOUNDARY ACROSS THE CNTRL/ERN TX PANHANDLE WHERE MIDDLE
TO UPPER 50S SURFACE DEW POINTS CONTRIBUTE TO A MODERATELY UNSTABLE
AIR MASS WITH MLCAPE AROUND 1500 J/KG. WITH STRONG DIRECTIONAL
VEERING FROM SLY FLOW AT THE SURFACE TO MODERATE NLY FLOW AOA 3 KM
AGL /PER AREA VWP AND PROFILER DATA/...AN ORGANIZED CONVECTIVE
CLUSTER MAY ULTIMATELY EVOLVE S/SEWD ACROSS FAR ERN NM INTO THE WRN
AND PERHAPS CNTRL PANHANDLES.
..GRAMS.. 07/19/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...DDC...LUB...AMA...PUB...ABQ...
LAT...LON 37560235 37440196 36980161 36220125 35370100 34750117
34240135 33960219 33850320 34060472 34360506 34720526
35470488 36680387 37300300 37560235
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