[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 140355
SWOMCD
SPC MCD 140355 
NDZ000-MTZ000-140500-

MESOSCALE DISCUSSION 1747
NWS STORM PREDICTION CENTER NORMAN OK
1055 PM CDT WED JUL 13 2005

AREAS AFFECTED...NERN MT / NWRN ND

CONCERNING...SEVERE THUNDERSTORM WATCH 636...637...

VALID 140355Z - 140500Z

THUNDERSTORMS HAVE SHOWN A GENERAL DECREASE IN INTENSITY ACROSS MUCH
OF CENTRAL MT...BUT REMAIN STRONG / SEVERE OVER NERN MT / NWRN ND. 
THOUGH SEVERE THUNDERSTORM WATCH 636 WILL LIKELY BE ALLOWED TO
EXPIRE AS SCHEDULED AT 14/05Z...WE WILL CONTINUE TO MONITOR PARTS OF
ERN MT AND WRN ND FOR POTENTIAL THAT SEVERE THREAT WILL CONTINUE
BEYOND 14/05Z.

LATEST DATA SHOWS THAT UNSTABLE AIRMASS PERSISTS ACROSS ERN MT /
NWRN ND...THOUGH AIRMASS STABILIZES SIGNIFICANTLY WITH EWD EXTENT
ACROSS WRN AND INTO CENTRAL ND.  AS UPPER TROUGH SWEEPS EWD ACROSS
WRN AND INTO CENTRAL MT...SEVERE THREAT SHOULD CONTINUE SHIFTING OUT
OF WW 636 / INTO WW 637.  EVENTUALLY...CONVECTION WILL ENCOUNTER
MORE STABLE AIR ACROSS W CENTRAL ND.  IN THE MEAN TIME...SEVERE
THREAT WILL CONTINUE ACROSS WW 637...WHERE WIND GUSTS OVER 60 MPH
HAVE BEEN RECENTLY OBSERVED.  THREAT FOR SEVERE STORMS WILL CONTINUE
FOR AT LEAST THE NEXT HOUR...BEYOND WHICH NEW WW OR LOCAL EXTENSION
OF WW 637 MAY BE REQUIRED.

..GOSS.. 07/14/2005

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

ATTN...WFO...BIS...BYZ...GGW...

46910765 48000644 48960553 49000183 46720427 46700645 

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