SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0145 PM CST Tue Feb 02 2021 Valid 022000Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated, non-severe thunderstorms will remain possible along the Pacific Northwest coast through tonight. ...Synopsis... No changes have been made to the ongoing forecast. ..Gleason.. 02/02/2021 .PREV DISCUSSION... /ISSUED 1015 AM CST Tue Feb 02 2021/ ...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.
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