SPC 0830Z Day 3 Outlook

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0212 AM CST Sat Jan 02 2021

Valid 041200Z - 051200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
A few low-topped thunderstorms will be possible Monday across the
coastal Pacific Northwest and into parts of northern California.

...Synopsis...
The upper-air pattern will remain amplified, yet progressive on
Monday, with an upper trough over the Southeast and a secondary wave
moving eastward across the Great Lakes. This will reinforce high
pressure from the Plains into the Southeast, providing stability
with continued offshore flow.

To the west, significant height falls will occur during the day from
northern CA into the Pacific Northwest as an amplified shortwave
trough moves ashore around 00Z. Cool air aloft combined with lift
from a cold front may result in isolated to scattered low-topped
showers and thunderstorms, with the greatest lightning flash density
likely offshore. Low-level lapse rates over land will be relatively
poor with little to no heating due to increasing clouds and
precipitation. Due to the weak instability, severe weather is not
anticipated.

..Jewell.. 01/02/2021

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