ACUS01 KWNS 280043
SWODY1
SPC AC 280042

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0742 PM CDT Sun Oct 27 2024

Valid 280100Z - 281200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
A few flashes of lightning remain possible along the Pacific
Northwest coast tonight.

...01z Update...

Water-vapor imagery depicts a well-defined upper trough off the
Pacific Northwest coast. This feature is forecast to move inland
around sunrise, and 500mb temperatures are expected to cool a few
more degrees through 27/12z. Weak buoyancy is noted ahead of this
feature, primarily where the boundary layer is influenced by marine
conditions. 00z sounding from UIL was the most unstable profile
along the coast this evening, but MLCAPE was less than 100 J/kg,
though 8 c/km lapse rates were noted in the 3-6km layer. Weak
convection will continue to develop within this regime, and the
deepest updrafts may reach levels necessary for lightning discharge.
Though thunderstorm activity should remain quite sparse, and
concentrated near the water.

..Darrow.. 10/28/2024

$$

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