SWOMCD
SPC MCD 130306
MIZ000-WIZ000-130400-
MESOSCALE DISCUSSION 2168
NWS STORM PREDICTION CENTER NORMAN OK
1006 PM CDT MON SEP 12 2011
AREAS AFFECTED...UPR MI AND EXTREME NRN WI
CONCERNING...SEVERE THUNDERSTORM WATCH 849...
VALID 130306Z - 130400Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 849
CONTINUES.
H5 ANALYSIS/WATER VAPOR SHOW A STG UPR SHORTWAVE TROUGH /110
METER-12HR HEIGHT FALLS/ MIGRATING ACROSS THE UPR GRTLKS LATE THIS
EVE. VIGOROUS ASCENT ASSOCIATED WITH THE TROUGH HAS BEEN SUPPORTING
A BAND OF TSTMS...MOVING EWD AT AROUND 30 KTS ACROSS UPR MI AND FAR
NRN WI. ALTHOUGH UPR SYSTEM AND ASSOCIATED WIND FIELDS ARE QUITE
POTENT...MRGL LLVL MOISTURE AND INCREASING MLCINH IN THE INFLOW
REGION OF STORMS HAVE BEEN DETRIMENTAL IN SUSTAINING SVR STORMS.
ALTHOUGH AN ISOLD DMGG WIND GUST/SVR HAILSTONE IS NOT OUT OF THE
QUESTION...IT DOES NOT APPEAR ACTIVITY WILL GROW APPRECIABLY
STRONGER THAN IT IS AT 03Z. AS SUCH...A NEW WW WILL NOT BE NEEDED
EAST OF THE CURRENT WATCH.
..RACY.. 09/13/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...APX...MQT...GRB...
LAT...LON 45688904 46908862 47668747 46528491 45308594 45098737
45058794 45688904
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