[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 220333
SWOMCD
SPC MCD 220332 
MTZ000-220430-

MESOSCALE DISCUSSION 1421
NWS STORM PREDICTION CENTER NORMAN OK
1032 PM CDT TUE JUN 21 2005

AREAS AFFECTED...SWRN THROUGH N CNTRL MT

CONCERNING...SEVERE THUNDERSTORM WATCH 510...

VALID 220332Z - 220430Z

THREAT OF ISOLATED DAMAGING WIND AND HAIL MIGHT PERSIST FOR A COUPLE
HOURS FROM SWRN THROUGH N CNTRL MT. OVERALL DURATION AND MAGNITUDE
OF THE THREAT DOES NOT APPEAR SUFFICIENT FOR ANOTHER WW.  

FORCING FOR ASCENT ASSOCIATED WITH A SHORTWAVE TROUGH MOVING NEWD
THROUGH THE NRN ROCKIES HAS CONTRIBUTED TO AN INCREASE IN COVERAGE
OF THUNDERSTORMS OVER WRN MT THIS EVENING. RELATIVELY LARGE BOUNDARY
LAYER TEMPERATURE-DEWPOINT SPREADS ARE ENHANCING THE POTENTIAL FOR
DAMAGING WIND WITH THE STRONGER STORMS. MID LEVEL FLOW WILL VEER AND
STRENGTHEN OVER WRN MT IN WAKE OF THE SHORTWAVE TROUGH...AND THIS
SHOULD ENHANCE THE DOWNSLOPE POTENTIAL IN THE LEE OF THE MOUNTAINS. 
ISOLATED STORMS MIGHT REMAIN SEVERE FOR AN HOUR OR TWO BEYOND THE
EXPIRATION OF WW 510. HOWEVER...INCREASING DOWNSLOPE POTENTIAL AND
COOLING BOUNDARY LAYER SHOULD SERVE AS LIMITING FACTORS FOR A LONGER
TERMED SEVERE THREAT.

..DIAL.. 06/22/2005

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

ATTN...WFO...TFX...MSO...

47321018 46021288 48321380 48891209 48710947 

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