Administrators NorthGeorgiaWX Posted December 20, 2023 Administrators Share Posted December 20, 2023 SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0228 AM CST Wed Dec 20 2023 Valid 221200Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible on Friday from southern California across much of the Southwest. A few isolated thunderstorms are possible along the Middle Texas Coast Saturday morning as well. ...Synopsis... An upper low is expected to be centered off the southern CA coast early Friday morning before devolving into a more progressive open wave and moving eastward across the Southwest States and northern Mexico. Strong forcing for ascent, cold mid-level temperatures, and increased mid-level moisture will accompany this system, supporting the potential for thunderstorms across much of southern CA and Southwest. Isolated thunderstorms will likely be ongoing over southern CA/AZ early Friday morning, with thunderstorms expected to gradually shift eastward with parent upper system, ending with isolated thunderstorms over southeast NM and far west TX Saturday morning. Given the cold mid-level temperatures and enhanced mid-level flow through the base of this wave, a few instances of small hail are possible. Any hail should be small and sporadic enough to preclude the need for any probabilities. Low-level flow is expected to increase from south TX into the Panhandle ahead of the approaching system Friday night into Saturday morning. Eastern periphery of this increasing flow may interact with enough low-level moisture to support isolated elevated thunderstorm in the vicinity of the Middle TX Coast. ..Mosier.. 12/20/2023 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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