[MCD] SWOMCD

Tue Jun 13 23:09:04 UTC 2006

ACUS11 KWNS 132307
SWOMCD
SPC MCD 132307 
MTZ000-IDZ000-ORZ000-140030-

MESOSCALE DISCUSSION 1175
NWS STORM PREDICTION CENTER NORMAN OK
0607 PM CDT TUE JUN 13 2006

AREAS AFFECTED...WRN AND NRN ID / FAR WRN MT

CONCERNING...SEVERE THUNDERSTORM WATCH 476...

VALID 132307Z - 140030Z

INITIAL SHORTWAVE ASSOCIATED WITH LARGE-SCALE WRN TROUGH NOW MOVING
THROUGH SRN ID...WITH SURFACE COLD FRONT EXTENDING FROM JUST WEST OF
MSO TO EKO. THE RECENT DEVELOPMENT/ADVECTION OF MID/UPPER LEVEL
CLOUD DECK OVER ID IS INDICATIVE OF SYNOPTIC-SCALE ASCENT ASSOCIATED
WITH AFOREMENTIONED TROUGH AND EXIT REGION OF CYCLONIC JET MAXIMUM
ADVANCING NORTHWARD THROUGH EASTERN NV. 

THE 1900 UTC TFX RAOB SHOWED A MODERATELY UNSTABLE AIRMASS WITH A
WELL MIXED...MOIST BOUNDARY LAYER. ADDITIONAL AFTERNOON INSOLATION
PRIOR TO CLOUD DEVELOPMENT HAS LED TO MLCAPES NOW IN EXCESS OF 2000
J/KG OVER NORTHWEST MT TO BETWEEN 1000 AND 1500 J/KG OVER THE
SAWTOOTH MOUNTAINS AND TREASURE VALLEY. AS MID LEVEL SHORTWAVE
CONTINUES TO ADVANCE NORTHWARD...EFFECTIVE BULK SHEAR IS AT OR ABOVE
45 TO 50 KTS AND WILL CONTINUE TO SUPPORT ORGANIZED CONVECTIVE
UPDRAFTS AND SUPERCELLS WITH LARGE HAIL AND DAMAGING WIND.

..BRIGHT.. 06/13/2006

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

ATTN...WFO...TFX...PIH...MSO...BOI...OTX...PDT...

43201697 49021675 48981356 43301413 

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