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
...NO THUNDERSTORM AREAS FORECAST...
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.