Administrators NorthGeorgiaWX Posted December 17, 2023 Administrators Share Posted December 17, 2023 Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0321 AM CST Sun Dec 17 2023 Valid 201200Z - 251200Z ...DISCUSSION... Medium-range guidance is in good agreement that a low-amplitude upper pattern, free of any larger disturbances, and a dry continental air mass will be in place over the CONUS early D4/Wednesday. Some modification of the portion of this air mass over the Plains will begin on D4/Wednesday, ahead of a low-amplitude shortwave expected to gradually move across the Southwest. This shortwave will likely interact with the returning low-level moisture late D5/Thursday and early D6/Friday, but buoyancy and shear will be modest, limiting the severe potential. This shortwave will likely continue eastward into the Lower/Mid MS Valley on D6/Friday. At the same time, upper low off the southern CA coast is expected to start progressing more eastward, potentially moving across southern CA on D6/Friday and into northern Mexico/Southwest on D7/Saturday. Modest low-level moisture is forecast to be in place over the southern Plains ahead of this wave, but warm mid-level temperatures and resultant poor lapse rates should keep the severe potential low. Read more View the full article Quote Link to comment Share on other sites More sharing options...
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