SPC Dec 15, 2024 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook

Day 4-8 Convective Outlook  
NWS Storm Prediction Center Norman OK
0312 AM CST Sun Dec 15 2024

Valid 181200Z - 231200Z

...DISCUSSION...
A surface cold front will move south and east across the eastern and
southeastern U.S. on Day 4/Wed, moving offshore the Gulf and
Atlantic coasts by early Day 5/Thu. Showers and thunderstorms are
possible near the cold front across parts of the Southeast and
Mid-Atlantic vicinity on Day 4/Wed. However, weak instability and
only modest vertical shear is expected to limit severe thunderstorm
potential.

After Day 4/Wed, a mean upper level trough will persist over the
eastern half of the CONUS, while an amplified upper ridge develops
over the West. As the early period cold front continues to intrude
southward across the Gulf of Mexico, boundary-layer moisture will
become scant across the CONUS, and offshore trajectories will
persist through the period.  This overall pattern will result in
limited thunderstorm potential beyond Day 4/Wed, and severe storms
are not expected.

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