SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1056 AM CST Mon Feb 22 2021 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms will be possible over a portion of the Pacific Northwest and northern Rockies Tuesday. ...Pacific Northwest through northern Rockies... Embedded within a progressive northwest flow regime, another in a series of low-amplitude shortwave troughs will move southeast into the Pacific Northwest and northern Rockies Tuesday afternoon and evening. This feature will be accompanied by cold temperatures aloft supporting steep (7.5 - 8 C/km) mid-level lapse rates and weak instability with MLCAPE from 100-300 J/kg as the boundary layer warms during the day. Scattered showers will likely develop with the most numerous activity within the upslope regions of the Cascades and northern Rockies. A few lightning flashes will be possible, especially from late afternoon through mid evening. ..Dial.. 02/22/2021
There’s more click here.