Severe Storm Outlook Narrative (AC)
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ACUS02 KWNS 161651
SPC AC 161650

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1050 AM CST Tue Jan 16 2018

Valid 171200Z - 181200Z


Thunderstorms are not expected across the U.S. Wednesday.

Cyclonic mid-level flow will accompany a trough over the eastern
U.S. while increasing influence of an eastern Pacific mid-level
low/trough impinges on the Pacific Northwest.  Surface high pressure
centered over the ArkLaTex will maintain cool/offshore flow into the
Gulf of Mexico.  Cool/stable conditions will preclude a thunderstorm
risk for almost the entire Lower 48.  Farther west, along the
Pacific Northwest coast, increasing large-scale ascent and
steepening low-level lapse rates may favor a few isolated lightning
flashes near Olympic National Park late in the period.  However,
weak/thin buoyancy profiles suggest any strikes will likely be too
sparse for a thunder area at this time.

..Smith.. 01/16/2018

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