Thursday, July 24, 2008

MESO: Mesoscale Discussion 1904

ACUS11 KWNS 250049
SWOMCD
SPC MCD 250049
MOZ000-KSZ000-NEZ000-250215-

MESOSCALE DISCUSSION 1904
NWS STORM PREDICTION CENTER NORMAN OK
0749 PM CDT THU JUL 24 2008

AREAS AFFECTED...NERN KS/NWRN AND W CENTRAL MO

CONCERNING...TORNADO WATCH 747...

VALID 250049Z - 250215Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 747 CONTINUES.

SEVERE/TORNADO THREAT CONTINUES ACROSS VALID PORTIONS OF WW.

LARGE SUPERCELL STORM -- WHICH CONTINUES TO EXHIBIT SIGNS OF OUTFLOW
DOMINANCE -- IS MOVING ESEWD ACROSS NERN KS ATTM. THIS STORM IS
OCCURRING WITHIN AN AXIS OF STRONG INSTABILITY /2500 TO 3500 J/KG
MIXED-LAYER CAPE/ ALONG A WELL-DEFINED WNW-ESE SURFACE WARM FRONT
EXTENDING ACROSS THIS AREA.

WHILE MID-LEVEL FLOW IS NOT PARTICULARLY STRONG ACROSS THIS REGION
/25 KT FROM THE WNW PER EVENING TOP RAOB/...ESELY LOW-LEVEL
COMPONENT JUST TO THE COOL SIDE OF THE SURFACE FRONT APPEARS TO BE
ENHANCING BOTH THE LOW-LEVEL AND DEEP-LAYER SHEAR. THUS...IN
ADDITION TO A THREAT FOR HAIL AND WIND...ISOLATED TORNADOES REMAIN
POSSIBLE -- PARTICULARLY INVOF THE SURFACE BOUNDARY.

AS THE LOW-LEVEL JET CONTINUES TO STRENGTHEN ACROSS KS --
ADDITIONAL CONVECTIVE DEVELOPMENT MAY OCCUR...WITH SOME SEVERE
POTENTIAL POSSIBLY LINGERING WELL INTO THE EVENING.

..GOSS.. 07/25/2008

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...SGF...EAX...OAX...TOP...

39849675 40149614 39779454 38919349 38209370 38639601
39299715

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