[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 292230
SWOMCD
SPC MCD 292230 
SDZ000-NEZ000-COZ000-WYZ000-292300-

MESOSCALE DISCUSSION 1795
NWS STORM PREDICTION CENTER NORMAN OK
0530 PM CDT THU JUL 29 2004

AREAS AFFECTED...PORTIONS OF WRN INTO CENTRAL NEB

CONCERNING...SEVERE THUNDERSTORM WATCH 671...672...

VALID 292230Z - 292300Z

WW WILL BE ISSUED SOON FOR PORTIONS OF NRN NEB.

STRONG TO SEVERE STORMS HAVE CONTINUED TO DEVELOP ACROSS NWRN NEB
AND SWRN SD DURING THE LAST HOUR.  THIS TREND IS EXPECTED TO
CONTINUE INTO THE EVENING...AS LARGE SCALE ASCENT INCREASES IN
ADVANCE OF A STRONG MID/UPPER LEVEL TROUGH TRACKING SEWD TOWARD THE
NRN/CENTRAL PLAINS.  ALTHOUGH INSTABILITY IS MARGINAL ATTM ACROSS
SOUTH CENTRAL SD AND NORTH CENTRAL NEB...A PLUME OF STEEP LAPSE
RATES PROGGED TO SPREAD EWD THIS EVENING WILL AID IN FURTHER
DESTABILIZATION.  THE GREATEST SEVERE THREAT IS EXPECTED TO EXTEND
EWD INTO PORTIONS OF CENTRAL SD AND NORTH CENTRAL NEB...WHERE
STRONGER FORCING WITH THE UPPER TROUGH...AN INCREASING LLJ INTO THIS
AREA AND THE BEST CAPE/SHEAR VALUES ARE EXPECTED.  A MORE ISOLATED
SEVERE THREAT WILL EXTEND SWD ACROSS SOUTH CENTRAL NEB WHERE
INSTABILITY SHOULD BE WEAKER.  ISOLATED SEVERE STORMS WILL ALSO
CONTINUE TO BE A THREAT OVER NERN-EAST CENTRAL CO WHERE MODERATE
INSTABILITY AND INCREASING DEEP LAYER SHEAR WILL CONTINUE TO FAVOR
SEVERE STORMS.

..PETERS.. 07/29/2004

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

ATTN...WFO...FSD...ABR...GID...LBF...UNR...GLD...PUB...BOU...CYS...

39110480 42940520 43310408 44960401 44909869 43079867
42159858 41829889 41489948 40580144 40000205 39060207 

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