Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 192332
SWOMCD
SPC MCD 192332
WIZ000-IAZ000-MNZ000-200030-

Mesoscale Discussion 1355
NWS Storm Prediction Center Norman OK
0632 PM CDT Wed Jul 19 2017

Areas affected...Southeast MN...Northeast IA...Southwest WI

Concerning...Severe Thunderstorm Watch 421...

Valid 192332Z - 200030Z

The severe weather threat for Severe Thunderstorm Watch 421
continues.

SUMMARY...Severe threat will decrease from west to east across WW421
with leading edge of squall line expected to exit the watch shortly
after 20/00z.

DISCUSSION...Long-lived MCS is progressing steadily southeast at
45-50kt and should exit the eastern portions of WW421 within the
next hour. Damaging winds remain likely along the leading edge of
the squall line and this is the primary threat as the MCS moves
toward southern WI/northern IL.

..Darrow.. 07/19/2017

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...MKX...ARX...MPX...DMX...

LAT...LON   44029303 43719021 42699021 42999306 44029303



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