SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0206 AM CST Thu Dec 31 2020 Valid 021200Z - 031200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHEAST AND EASTERN CAROLINAS... ...SUMMARY... Thunderstorms associated with marginally severe wind gusts will be possible on Saturday from parts of the eastern Gulf Coast to the southern Atlantic Seaboard. ...Eastern Gulf Coast/Southern Atlantic Seaboard... An upper-level low is forecast to move northeastward across the Ozarks on Saturday as southwest mid-level flow remains from the Southeast into the Carolinas. At the surface, a cold front is forecast to become quasi-stationary on Saturday from the Florida Panhandle northeastward into far eastern North Carolina. Ahead of the front, surface dewpoints in the lower to mid 60s F will allow for weak destabilization by afternoon. Thunderstorm development will be possible along the axis of instability as low-level convergence increases during the day. The presence of strong deep-layer shear may be enough for an isolated wind damage threat, with the threat maximizing across the northwestern edge of the moist sector from the Florida Panhandle to eastern South Carolina. The threat may also affect far eastern North Carolina during the evening as a low-level jet translates northeastward. ..Broyles.. 12/31/2020
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