[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 080803
SWOMCD
SPC MCD 080802 
MIZ000-MNZ000-WIZ000-080900-

MESOSCALE DISCUSSION 1139
NWS STORM PREDICTION CENTER NORMAN OK
0302 AM CDT TUE JUN 08 2004

AREAS AFFECTED...ECNTRL/NERN MN INTO WCNTRL/NWRN WI

CONCERNING...SEVERE THUNDERSTORM WATCH 407...408...

VALID 080802Z - 080900Z

SEVERE THUNDERSTORM WATCHES 407 AND 408 ARE SET TO EXPIRE AT 0900
UTC.  ANOTHER WATCH WILL PROBABLY NOT BE NEEDED.

THE BOW ECHO THAT MOVED THROUGH THE TWIN CITIES AREA DID NOT
MAINTAIN CHARACTER AS IT MOVED EWD...PROBABLY DUE TO STRONGER CAP
LOCATED ALONG THE MS RVR.  ELEVATED TSTMS HAVE CONTINUED TO DEVELOP
IN THE WAKE DEPRESSION AND WILL MOVE TOWARD THE WRN PARTS OF THE
TWIN CITIES METRO AREA THROUGH 10Z.  THESE STORMS MAY POSE AN ISOLD
HAIL THREAT.  

MEANWHILE...DOWNSTREAM...OUTFLOW BOUNDARY HAS MOVED INTO WCNTRL/
NWRN WI WITH A MESOSCALE CONVECTIVE VORTICITY CENTER MOVING ENEWD
INTO BURNETT COUNTY WI.  THIS MCV EVOLVED FROM THE HEAD PORTION OF
THE RECENTLY WEAKENED BOW ECHO.  ASSOCIATED TSTMS WILL CONTINUE TO
MOVE ENEWD TOWARD HAYWARD BY 0800 UTC AND COULD PERIODICALLY PRODUCE
A DAMAGING WIND GUST OR HAIL.

OTHERWISE...SUSTAINED DEEP CONVECTION HAS FAILED TO DEVELOP ALONG
THE OUTFLOW/FRONT FARTHER NORTH ACROSS NERN MN LATELY. TSTMS MAY
INCREASE UPSTREAM FROM THE SERN ND/NERN SD AREA NEWD INTO CNTRL/NRN
MN IN A FEW HOURS.  THESE TSTMS SHOULD MAINLY BE SUB-SEVERE...BUT
COULD PRODUCE ISOLD HAIL TO NEAR SEVERE LEVELS.

GIVEN ISOLD COVERAGE OF THE SEVERE THREATS...IT DOES NOT SEEM
PRUDENT TO ISSUE CONTINUATION WATCHES ACROSS THE UPPER MS VLY ATTM.

..RACY.. 06/08/2004

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

ATTN...WFO...MQT...DLH...MPX...

44709563 46229490 48049193 48038870 45769166 45649077
44559214 44549468 

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