[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 260042
SWOMCD
SPC MCD 260042 
WYZ000-MTZ000-IDZ000-260215-

MESOSCALE DISCUSSION 1472
NWS STORM PREDICTION CENTER NORMAN OK
0742 PM CDT SAT JUN 25 2005

AREAS AFFECTED...PORTIONS SERN ID...WRN WY...SWRN MT

CONCERNING...SEVERE THUNDERSTORM WATCH 524...

VALID 260042Z - 260215Z

MAINTAIN BULK OF WW THROUGH SCHEDULED 02Z EXPIRATION EXCEPT
STABILIZED AIR MASS OVER NWRN PORTION. THEREAFTER...EXPECT
INCREASING COVERAGE OF CONVECTIVE OUTFLOWS AND LOSS OF SFC DIABATIC
HEATING TO REDUCE INSTABILITY AND SEVERE POTENTIAL.

OUTFLOW BOUNDARY FROM CENTRAL MT CONVECTION HAS MOVED THROUGH
BIL...AND EXTENDS WWD ACROSS PORTIONS STILLWATER/SWEET GRASS/PARK
COUNTIES.  EXPECT THIS BOUNDARY TO CONTINUE DRIFTING S TOWARD
FOOTHILLS OF BEARTOOTH RANGE.  VIS IMAGERY INDICATES TCU/STRONGLY
SHEARED CB ATTEMPTS IN BEARTOOTHS/ABSAROKAS...AND CELLS ORIGINATING
THERE MAY INTENSIFY TO SEVERE LEVELS AS THEY INTERACT WITH THAT
BOUNDARY.  FARTHER S...DRY AIR MASS IS PRECLUDING RAPID
INTENSIFICATION OF WIDELY SCATTERED CONVECTION ACROSS PORTIONS SERN
ID.  GIVEN FAVORABLE KINEMATIC FIELDS ACROSS REGION...SEVERE
POTENTIAL REMAINS WITH ANY ACTIVITY THAT CAN BECOME ESTABLISHED ATOP
DEEPLY MIXED BOUNDARY LAYER.  MEANWHILE...AIR MASS ACROSS MUCH OF
WRN MT -- N OF DLN AREA -- HAS STABILIZED SIGNIFICANTLY DUE TO
PRECIP AND MAY BE REMOVED FROM WW.

..EDWARDS.. 06/26/2005

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

ATTN...WFO...BYZ...RIW...TFX...SLC...PIH...MSO...BOI...

42011443 46701272 46680883 42041086 

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