328
ACUS48 KWNS 070850
SWOD48
SPC AC 070848

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0248 AM CST Sun Dec 07 2025

Valid 101200Z - 151200Z

...DISCUSSION...
After becoming suppressed a bit, medium-range guidance indicates
that a blocking high may become more prominent again, near/north of
the Aleutians late this coming work week into next weekend.
Surrounding developments across the mid- and higher latitudes of the
Pacific do become characterized by increasing spread. However, it is
not yet clear how much impact this will have on downstream flow
across North America.  It still appears that an increasingly
confluent northwesterly mid-level regime, between persistent ridging
across the eastern Pacific into western North America and downstream
troughing, may support the development of another expansive surface
ridge east of the Rockies into the Gulf Basin and Atlantic Seaboard
late this week through next weekend.  This is likely to further
impede deep boundary-layer moistening over the northwestern Gulf.
Coupled with the lack of a developing southerly return flow from
the Gulf Basin until at least early next week, it appears that
generally stable conditions will be maintained through this period.

..Kerr.. 12/07/2025