Administrators NorthGeorgiaWX Posted December 29, 2023 Administrators Share Posted December 29, 2023 SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0637 AM CST Fri Dec 29 2023 Valid 291300Z - 301200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast through tonight across the Lower 48 states. ...Synopsis... Water-vapor imagery early this morning shows a potent mid- to upper-level trough near -130 deg W moving east towards the West Coast. This large-scale trough will reach the CA coast by early Saturday morning. Cold-air advection in the mid levels associated with the approaching trough and increased large-scale forcing for ascent, will favor the development of showers and a few thunderstorms moving ashore from Point Conception to southwest OR. Pockets of scant instability will likely limit both thunderstorm coverage/intensity. Elsewhere across the contiguous U.S., surface high pressure will influence conditions and be hostile for thunderstorm activity. ..Smith/Marsh.. 12/29/2023 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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