Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Nov 09 2024 08:18:49

ACUS03 KWNS 090818
SWODY3
SPC AC 090817

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0217 AM CST Sat Nov 09 2024

Valid 111200Z - 121200Z

....NO SEVERE THUNDERSTORM AREAS FORECAST...

....SUMMARY...
Severe storms are not expected on Monday or Monday night.

....Southeast...
Thunderstorm potential should be focused during the first half of
the period. A weak cold front will accelerate southeast as a surface
anticyclone moves into the Upper Midwest and a ridge builds south
across the MS Valley. Convergence along the front will remain weak
within a predominately zonal flow regime. In conjunction, with
persistent weakness in lapse rates above the boundary layer,
thunderstorm coverage should tend to be isolated.

....Pacific Northwest...
A leading shortwave trough and attendant surface cold front should
move onshore Monday morning. In its wake, a generally onshore flow
regime will persist through the period. Low to mid-level lapse rates
will be steep, yielding instability amid meager buoyancy. An
upstream shortwave impulse should aid in scattered, low-topped
convection. Some of this will be sufficiently deep to foster
sporadic lightning. Very isolated thunderstorms may occur farther
inland towards the northern Great Basin. But confidence is low in
whether scant buoyancy will develop east of the Cascade Range.

...Grams.. 11/09/2024

$$

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