MESO: Mesoscale Discussion 1472

ACUS11 KWNS 132134
SWOMCD
SPC MCD 132134
NEZ000-COZ000-WYZ000-132330-

MESOSCALE DISCUSSION 1472
NWS STORM PREDICTION CENTER NORMAN OK
0434 PM CDT FRI JUL 13 2007

AREAS AFFECTED...WESTERN NEB/SOUTHEAST WY INTO FAR NORTHEAST CO

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 132134Z - 132330Z

ISOLATED LARGE HAIL/STRONG WIND GUST THREAT WILL EXIST THROUGH EARLY
EVENING ACROSS WESTERN NEB/SOUTHEAST WY INTO FAR NORTHEAST CO. A
WATCH IS NOT CURRENTLY ANTICIPATED...HOWEVER DEVELOPMENTAL TRENDS
WILL CONTINUE TO BE MONITORED.

WATER VAPOR IMAGERY PORTRAYS LOW AMPLITUDE VORTICITY MAXIMA MOVING
SOUTHEASTWARD OVER EASTERN WY/WESTERN SD. AHEAD OF THIS
FEATURE...STORMS HAVE INCREASED ALONG A WEAK BOUNDARY/WIND SHIFT
ROUGHLY ORIENTED WEST-EAST FROM SOUTHEAST WY INTO NORTH CENTRAL NEB.
FURTHER DEVELOPMENT/INTENSIFICATION APPEARS LIKELY OVER THE NEXT
COUPLE OF HOURS GIVEN APPROACHING MID LEVEL IMPULSE AND SOME
ADDITIONAL DESTABILIZATION...WITH 1000-1500 J/KG MLCAPE IN PRESENCE
OF A WARM/UNCAPPED BOUNDARY LAYER. WITH MODEST NORTHWEST FLOW ALOFT
/25 KT AT 500 MB/ PER THE MERRIMAN NEB PROFILER...MODERATE
INSTABILITY AND VEERING WIND PROFILES MAY SUPPORT SOME SUPERCELL
STRUCTURES AS STORMS SPREAD SOUTHEASTWARD THROUGH EARLY EVENING.
LARGE HAIL AND STRONG WIND GUSTS ARE POSSIBLE WITH THE STRONGEST
STORMS.

.GUYER.. 07/13/2007

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

ATTN...WFO...LBF...GLD...BOU...CYS...

42740418 42710224 42210012 41569988 40690063 40330248
41160482 42280492

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