Severe Storm Outlook Narrative (AC)
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ACUS02 KWNS 171723
SPC AC 171723

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1223 PM CDT Tue Oct 17 2017

Valid 181200Z - 191200Z


Thunderstorm potential Wednesday/Wednesday night will focus across
portions of the Florida Peninsula and the adjacent southeast U.S.
coast, as well as over parts of eastern Arizona, New Mexico, and far
west Texas.

A relatively low-amplitude flow field aloft will persist across the
U.S. Wednesday, though the approach of an eastern Pacific trough
during the second half of the period will allow flow to strengthen
and become more cyclonic Wednesday night over the Pacific Northwest
and vicinity.

Meanwhile, a fast-moving upper trough/low and associated surface
cyclone is progged to cross central Canada with time, while the
trailing cold front moves eastward across the north-central states
and upper Great Lakes region.  However, lack of instability
accompanying the front precludes thunder risk.

Potential for thunderstorms should remain confined to Florida and
the coastal southeast U.S. as weak upper troughing crosses the area,
and over portions of AZ/NM/far west TX in response to another area
of weak upper cyclonic flow/troughing.  Severe weather is not
anticipated in either area.

..Goss.. 10/17/2017

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