[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 130604
SWOMCD
SPC MCD 130604 
OKZ000-130730-

MESOSCALE DISCUSSION 0853
NWS STORM PREDICTION CENTER NORMAN OK
0104 AM CDT FRI MAY 13 2005

AREAS AFFECTED...CNTRL OK

CONCERNING...SEVERE THUNDERSTORM WATCH 265...

VALID 130604Z - 130730Z

...INCREASED THREAT OF DAMAGING WINDS/LARGE HAIL WITH BOW ECHO
MOVING ACROSS CNTRL OK EARLY THIS MORNING...

LATEST RADAR IMAGERY FROM OKLAHOMA CITY /TWIN LAKES/ RADAR SHOWS BOW
ECHO EXTENDING FROM BLAINE TO CADDO COUNTIES...AND A SECONDARY BOW
WHICH IS PASSING OVER KIOWA/TILLMAN AND JACKSON COUNTIES IN SW OK.
SO FAR...NUMEROUS MEASURED WINDS OF 50-60 MPH HAVE BEEN RECEIVED
WITH A GUST TO 61 MPH AT CLINTON OK JUST BEFORE MIDNIGHT. OK MESONET
OBSERVATIONS SHOW GUST FRONT RECENTLY PASSED THROUGH HINTON/FORT
COBB/ALTUS...SO THE MAIN THREAT FOR STRONG WIND IS ALONG AND EAST OF
THIS BOUNDARY. WIND PROFILER DATA FROM PURCELL/LAMONT AND OKC RADAR
SUGGEST 50 KT WINDS BETWEEN 0-1KM...SO CERTAINLY STRONG TSTM WIND
GUSTS ARE A THREAT WITH THESE STORMS WITH A SECONDARY THREAT OF
LARGE HAIL. 

DOWNSTREAM AIRMASS IS MODERATELY UNSTABLE WITH MLCAPE VALUES IN THE
1500-2000 J/KG RANGE. ALTHOUGH OUTFLOW BOUNDARY HAS BEGUN TO OUTRUN
INITIAL BOW ECHO IN CADDO CO...IT APPEARS THIS MCS HAS BECOME
ORGANIZED AND WILL AFFECT CNTRL PORTIONS OF OK...INCLUDING THE OKC
METRO AREA...WITHIN THE NEXT 2-3 HOURS.

..TAYLOR.. 05/13/2005

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

ATTN...WFO...OUN...

34229824 34259862 35089876 35889836 36419797 36479740
36219724 35689722 35009745 34469761 34189780 

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