[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 071953
SWOMCD
SPC MCD 071953 
SDZ000-NEZ000-072030-

MESOSCALE DISCUSSION 1225
NWS STORM PREDICTION CENTER NORMAN OK
0253 PM CDT TUE JUN 07 2005

AREAS AFFECTED...WRN/CENTRAL SD INTO NWRN-NORTH CENTRAL NEB

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 071953Z - 072030Z

WW WILL BE REQUIRED SOON.

19Z SURFACE ANALYSIS SHOWED A PRIMARY SURFACE LOW OVER SRN WY
ASSOCIATED WITH THE STRONG MID LEVEL SHORT WAVE TROUGH MOVING NEWD
ACROSS WY.  A SECOND LOW WAS DEVELOPING ACROSS THE NEB PANHANDLE
WITH TWO ZONES OF CONVERGENCE EXTENDING EWD AND NEWD FROM THE NEB
LOW.  ONE WAS LOCATED ALONG THE SD/NEB BORDER...AND THE SECOND
EXTENDED NEWD INTO CENTRAL...THEN NERN SD.  SELY LOW LEVEL WINDS
WILL CONTINUE TO TRANSPORT MOISTURE WNWWD INTO WRN SD/WRN NEB WITH
THE 60 F SURFACE ISODROSOTHERM NOW EXTENDING FROM FAITH SD SWD INTO
NEB AT CDR TO OGA.  THIS COMBINED WITH STEEPENING MID LEVEL LAPSE
RATES IS AIDING IN DESTABILIZATION WITH MODERATE INSTABILITY
EXTENDING WWD INTO SWRN SD/NWRN NEB.  

VIS IMAGERY SHOWED CU/TCU CONTINUING TO DEVELOP ACROSS WRN SD AND
ALONG THE SD/NEB BORDER REGION.  THUNDERSTORMS WILL CONTINUE TO
DEVELOP OVER WRN SD...WITH ADDITIONAL DEVELOPMENT SWD INTO NWRN-NRN
NEB AS LARGE SCALE ASCENT SPREADS EWD ATOP THE DESTABILIZING AIR
MASS.

..PETERS.. 06/07/2005

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

ATTN...WFO...FSD...ABR...LBF...UNR...CYS...

44830382 45360380 45640314 45520110 44710028 43789971
43539930 42879918 42339981 42210110 41920236 42070373 

WWWW