SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1217 AM CDT Sun Mar 27 2022
Valid 271200Z - 281200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
A few thunderstorms are possible across the Cascade Range.
...Cascade Range...
Latest model guidance suggests a strong mid-level jet will approach
the central CA Coast Sunday night with the associated trough not
expected to advance inland until later in the day2 period.
High-level difluent flow aloft will be noted across the Cascade
Range and weak buoyancy is forecast to develop primarily during the
latter half of the period. Forecast soundings across the higher
terrain suggest ample instability will develop for scattered
convection across the Cascades, especially across Oregon. NAM
forecast sounding southeast of SLE at 28/03z actually exhibits
around 500 J/kg SBCAPE with strong vertical shear supporting
organized updrafts. However, weak low-level flow and instability
will preclude any severe risk with this activity. Primary risk for
lightning will be after 00z.
..Darrow/Bentley.. 03/27/2022
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