Severe Storm Outlook Narrative (AC)
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191
ACUS48 KWNS 240808
SWOD48
SPC AC 240807

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0307 AM CDT Sun Sep 24 2017

Valid 271200Z - 021200Z

...DISCUSSION...
A mid-level cut-off low - located over the Desert Southwest at the
beginning of the extended period - will drift slowly northeastward
across the Great Basin while weakening through D7/Saturday.
Meanwhile, a trough near the Great Lakes and Northeast will amplify
while migrating southeastward across portions of the eastern CONUS.
At the surface, a broad area of high pressure will build
southeastward into the center part of the country, resulting in
progressively drier, cooler air spreading into many areas near and
east of the Rockies.  With cool, stable air overspreading much of
the country, any severe weather risk is expected to be minimal
through at least D7/Saturday.

..Cook.. 09/24/2017



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