SPC 1630Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
1015 AM CST Tue Feb 02 2021

Valid 021630Z - 031200Z


Isolated, non-severe thunderstorms are possible along the Pacific
Northwest coast through tonight.

...Pacific Northwest coast...
A lead shortwave impulse will progress inland towards the northern
Rockies, while the primary shortwave trough will dig southeast along
the British Columbia coast and reach the OR coast by 12Z Wednesday.
This will maintain a steep low to mid-level lapse rate environment
coincident with scant buoyancy along both the OR/WA coast through
much of the period. Scattered showers are expected to persist this
afternoon and likely become more numerous tonight as large-scale
ascent increases downstream of the latter trough. While CG lightning
has not yet been detected, sporadic flashes will be possible and may
result in isolated thunderstorm coverage. Weak effective shear
coincident with the meager buoyancy is expected to preclude
potential for severe.

..Grams.. 02/02/2021

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