Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Sep 08 2024 08:52:08

ACUS48 KWNS 080852
SWOD48
SPC AC 080850

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0350 AM CDT Sun Sep 08 2024

Valid 111200Z - 161200Z

....DISCUSSION...
....Wednesday/Day 4 to Friday/Day 6...
An upper-level ridge is forecast to move across the north-central
U.S. on Wednesday, as a trough develops in the western U.S. An
upper-level low is forecast to move across the northwestern states
from Wednesday to Friday. Ahead of the trough, thunderstorms will be
possible each day from the Intermountain west eastward into the
central and northern Plains. At this time, the potential for severe
may be limited by instability, which is generally forecast to remain
weak across most of the western and central U.S.

In the Gulf Coast region, some model forecasts have a tropical
system becoming organized in the northern Gulf from Wednesday to
Friday. If this system materializes and can move onshore, the day
with the greatest potential to impact the central Gulf Coast would
be Thursday. A tornado threat could materialize as the system moves
inland, depending upon its overall strength.

....Saturday/Day 7 and Sunday/Day 8...
A shortwave trough is forecast to move eastward across the
north-central U.S. on Saturday, as an upper-level low moves across
the Ohio Valley and into the Great Lakes from Saturday into Sunday.
Although the potential for severe storms over the weekend appears to
be low at this time, substantial uncertainty exists at this extended
range.

...Broyles.. 09/08/2024

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