Severe Storm Outlook Narrative (AC)
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ACUS48 KWNS 250829
SWOD48
SPC AC 250827

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0327 AM CDT Tue Jul 25 2017

Valid 281200Z - 021200Z

...DISCUSSION...
Medium-range models continue to depict amplification of the
large-scale flow field aloft over the U.S. during the period, as
troughing expands over the eastern states and ridging strengthens
over the West.

Some severe risk may exist along the Eastern Seaboard day 4/Friday,
as an initial short-wave trough and associated surface cold front
shift east across the area.  However, with widespread precipitation
likely to be ongoing upstream, and therefore questions regarding
potential for warm-sector destabilization, will refrain from
introducing a risk area at this time.

As the progressive portion of the front moves off the Atlantic coast
late Day 4, and the trailing portion of the boundary becomes
quasi-stationary in an east-west orientation across the Gulf Coast
states, potential for organized/widespread severe weather appears
unlikely.  Elsewhere, as a ridge strengthens across the western
states, organized severe weather risk is not apparent at this time.

..Goss.. 07/25/2017


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