Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 250235
SWOMCD
SPC MCD 250234
WIZ000-MNZ000-250330-

MESOSCALE DISCUSSION 1611
NWS STORM PREDICTION CENTER NORMAN OK
0934 PM CDT SUN AUG 24 2014

AREAS AFFECTED...ERN MN...NWRN WI

CONCERNING...TORNADO WATCH 475...

VALID 250234Z - 250330Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 475 CONTINUES.

SUMMARY...SEVERE THREAT SHOULD GRADUALLY WANE OVER THE NEXT SEVERAL
HOURS.  NEW WW IS NOT ANTICIPATED.

DISCUSSION...EARLIER DISCRETE SUPERCELL STRUCTURES HAVE MOSTLY
WEAKENED WITH MULTIPLE STORM MERGERS RESULTING IN A FEW THUNDERSTORM
CLUSTERS NEAR THE ERN EDGE OF WW.  THIS ACTIVITY PERSISTS WITHIN A
WARM ADVECTION ZONE SEEMINGLY FAVORABLE FOR CONTINUED STRONG STORMS.
HOWEVER...INSTABILITY IS CONSIDERABLY WEAKER ACROSS THE ARROWHEAD OF
MN AND NRN WI WHERE ONGOING CONVECTION IS EXPECTED TO SPREAD OVER
THE NEXT FEW HOURS.  LATEST WDSSII HAIL ALGORITHM ALSO SUGGESTS HAIL
IS MOSTLY SUB-SEVERE AND DOWNSTREAM AIRMASS DOES NOT APPEAR
PARTICULARLY CONDUCIVE FOR VERY LARGE HAIL.  FOR THESE REASONS A NEW
WW IS NOT ANTICIPATED AS CONVECTION SPREADS ACROSS NWRN WI/ARROWHEAD
OF MN.

..DARROW.. 08/25/2014

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

ATTN...WFO...DLH...ARX...MPX...FGF...

LAT...LON   44589443 48509560 48509299 44589199 44589443



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