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ACUS03 KWNS 080824
SWODY3
SPC AC 080822
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0222 AM CST Sun Nov 08 2026
Valid 101200Z - 111200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
No severe threat is forecast across the U.S. Tuesday and Tuesday
night.
...DISCUSSION...
At mid-levels, a shortwave trough will move across the north-central
U.S. on Tuesday, as west-northwesterly flow remains in place over
much of the central and eastern U.S. A shortwave trough will also
move eastward in the vicinity of the western Gulf Coast. Isolated
thunderstorms will be possible within a moist airmass from south
Texas to the middle Texas Coast on Tuesday. No severe threat is
expected, and thunderstorms are not forecast across the remainder of
the continental U.S. Tuesday and Tuesday night.
..Broyles.. 11/08/2026
$$
File: /home/ldm/var/data/BY_SOURCE/KWNS/ACUS03/20261108T0824.txt
657
ACUS03 KWNS 071922
SWODY3
SPC AC 071920
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0120 PM CST Sat Nov 07 2026
Valid 091200Z - 101200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
There appears little risk for severe thunderstorms across the U.S.
Monday through Monday night.
...Discussion...
An initially strong, zonal mid/upper jet across the mid-latitude
Pacific is forecast to trend more amplified Monday through Monday
night, with split downstream flow inland across the Pacific coast
trending more confluent east of the Rockies through the Atlantic
Seaboard. Within an evolving branch across the subtropical
latitudes, it appears that a remnant cyclonic mid-level circulation
will continue to become increasingly sheared across and
east-northeast of the Texas Big Bend vicinity. Upstream, models
suggest that one or two perturbations emerging from the mid- and
subtropical eastern Pacific also will undergo considerable
deformation, while progressing inland within building larger-scale
ridging.
...Southern Texas...
Potential for scattered thunderstorm activity, largely supported by
forcing for ascent associated with lower/mid-tropospheric warm
advection downstream of the weakening mid-level perturbation, may
continue into the day Monday, before tending to diminish Monday
afternoon into evening.
...Pacific Northwest...
REFS calibrated thunderstorm guidance suggests potential for
scattered thunderstorm development inland of at least the Oregon
coast into Cascades by late Monday afternoon. This would likely
accompany destabilization beneath a relatively modest inland
progressing thermal trough (including 500 mb temperatures of around
-18 to -20C). RRFS forecast soundings do indicate the development
of weak CAPE, but the extent to which thermodynamic profiles become
supportive of lightning discharge remains unclear. At this time,
probabilities for thunderstorm initiation still appear negligible
(i.e., less than 10 percent).
..Kerr.. 11/07/2026
$$
File: /home/ldm/var/data/BY_SOURCE/KWNS/ACUS03/20261107T1922.txt