SWOMCD
SPC MCD 182242
WIZ000-MIZ000-MNZ000-182345-
MESOSCALE DISCUSSION 1656
NWS STORM PREDICTION CENTER NORMAN OK
0542 PM CDT MON JUL 18 2011
AREAS AFFECTED...WO
CONCERNING...SEVERE THUNDERSTORM WATCH 657...
VALID 182242Z - 182345Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 657
CONTINUES.
A FAIRLY HEALTHY BAND OF CONVECTION HAS EVOLVED ACROSS CNTRL WI
ALONG SWRN FLANK OF APPARENT SHORT WAVE TROUGH THAT IS DIGGING
ACROSS CNTRL ONTARIO/GREAT LAKES REGION. THIS ACTIVITY IS NOT
MOVING PARTICULARLY FAST...ON THE ORDER OF 20KT...BUT THIS E-W BAND
OF STORMS IS GRADUALLY INTENSIFYING FROM OUTAGAMIE COUNTY INTO
WAUPAGA COUNTY. UPWARD EVOLVING SQUALL LINE MAY BEGIN TO SURGE A
BIT FASTER IF PRECIP CONTINUES TO EXPAND AND A COLD POOL EVOLVES.
AS A RESULT...SEVERE THREAT MAY SPREAD INTO PORTIONS OF SERN WI JUST
SOUTH OF THE CURRENT WW SHORTLY AFTER 00Z.
..DARROW.. 07/18/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...MQT...GRB...MKX...DLH...ARX...MPX...
LAT...LON 45649140 45708762 43988762 43909140 45649140
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