Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 060235
SWOMCD
SPC MCD 060234
MNZ000-WIZ000-060400-

MESOSCALE DISCUSSION 1311
NWS STORM PREDICTION CENTER NORMAN OK
0934 PM CDT SUN JUL 05 2015

AREAS AFFECTED...PORTIONS OF NERN MN AND FAR NWRN WI

CONCERNING...SEVERE THUNDERSTORM WATCH 392...

VALID 060234Z - 060400Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 392
CONTINUES.

SUMMARY...THE SEVERE RISK ACROSS WW 392 HAS TRANSITIONED TO MAINLY
STRONG/DAMAGING WINDS FOR THE NEXT HOUR OR SO. BEYOND 04Z...THE
SEVERE THREAT SHOULD DIMINISH AS STORMS MOVE ACROSS FAR NWRN WI.

DISCUSSION...AS EXPECTED...A LINE OF THUNDERSTORMS ACROSS NERN MN IS
MOVING SEWD AROUND 40 KT ALONG/JUST AHEAD OF A COLD FRONT THIS
EVENING. GIVEN THE LINEAR NATURE OF THE CONVECTION...THE MAIN SEVERE
THREAT IS NOW DAMAGING WINDS...WITH THE KDLH RADAR INDICATING
LOW-LEVEL WINDS AROUND 50 KT APPROACHING THE DULUTH MN AREA OVER THE
NEXT HOUR OR SO. WITH THE LOSS OF DIURNAL HEATING...TEMPERATURES
DOWNSTREAM OF ONGOING CONVECTION HAVE FALLEN INTO THE 70S...AND
MLCAPE QUICKLY DECREASES WITH EWD EXTENT INTO FAR NWRN WI.
THEREFORE...THIS LINE OF THUNDERSTORMS SHOULD WEAKEN AROUND/SHORTLY
AFTER 04Z AS IT ENCOUNTERS A MORE MARGINAL/UNFAVORABLE THERMODYNAMIC
ENVIRONMENT.

..GLEASON.. 07/06/2015

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

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

LAT...LON   46119273 46159341 46159437 46389468 46539470 46679469
            46789463 47159434 47379379 47789289 47979243 48149204
            48199179 47549178 46939178 46169223 46029234 46119273




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