ZCZC SPCSWOMCD ALL
ACUS11 KWNS 070116 
SPC MCD 070116 
WIZ000-IAZ000-MNZ000-070245-

MESOSCALE DISCUSSION 1651
NWS STORM PREDICTION CENTER NORMAN OK
0816 PM CDT TUE SEP 06 2016

AREAS AFFECTED...PARTS OF SRN/CNTRL WI...NERN IA

CONCERNING...SEVERE THUNDERSTORM WATCH 469...

VALID 070116Z - 070245Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 469
CONTINUES.

SUMMARY...ISOLATED STRONG WIND GUSTS HAVE BECOME THE PRIMARY THREAT
WITHIN WW 469...AS CLUSTERS OF TSTMS DRIFT ESEWD ACROSS FAR NERN IA
AND CNTRL/SRN WI.

DISCUSSION...SEVERAL TSTM CLUSTERS HAVE DEVELOPED FROM FAR NERN IA
ACROSS CNTRL WI...WITH OCCASIONAL SUPERCELL STRUCTURES OBSERVED.
MOST RECENT TSTM DEVELOPMENT APPEARS TO BE OCCURRING IN THE WAKE OF
A SWD-MOVING OUTFLOW BOUNDARY...WHICH EXTENDS FROM NEAR SHEBOYGAN TO
JUST S OF LA CROSSE AS OF 01Z...AND THIS APPEARS TO BE LIMITING TSTM
INTENSITY WITHIN THE POST-OUTFLOW AIR MASS. THE RELATIVELY GREATEST
THREAT FOR STRONG TO MARGINALLY SVR WIND GUSTS WILL EXIST WITH ANY
TSTM AHEAD OF OR INTERACTING WITH THE SWD-MOVING OUTFLOW...BUT THE
ONSET OF DIURNAL COOLING AND SUBSEQUENT BOUNDARY-LAYER STABILIZATION
SHOULD CONTINUE TO SUPPORT AN OVERALL DOWNWARD TREND IN TSTM
INTENSITY AND ASSOCIATED SVR THREAT.

..ROGERS/EDWARDS.. 09/07/2016

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

ATTN...WFO...GRB...MKX...ARX...

LAT...LON   43688763 43338789 43129034 43089148 43279205 43599189
            43819129 43959002 44128935 44208813 44038758 43688763 

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