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    Day 2 Outlook >
Jan 20, 2021 1300 UTC Day 1 Convective Outlook
Updated: Wed Jan 20 11:29:07 UTC 2021 (Print Version | 20210120 1300Z Day 1 shapefile | 20210120 1300Z Day 1 KML)
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 Forecast Discussion
   SPC AC 201129

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0529 AM CST Wed Jan 20 2021

   Valid 201300Z - 211200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Isolated, non-severe thunderstorms should diminish later this
   morning over the Lower Colorado Valley, before redeveloping this
   evening into tonight across southern Arizona.

   ...Southern AZ and far southeast CA...
   A closed upper low west of the Baja Peninsula will gradually evolve
   back into an open wave by 12Z Thursday as it approaches the northern
   Gulf of CA. A plume of sufficient low to mid-level moisture across
   the peninsula and gulf will support periods of showers and embedded
   thunderstorms mostly across the northwest portions of Mexico and
   adjacent waters. Some of this activity will spread across the
   international border, mainly this morning across the Lower CO Valley
   and this evening into tonight over southern AZ. Meager buoyancy and
   weak low-level winds should preclude a severe threat.

   ..Grams.. 01/20/2021

   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1630Z

        
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Page last modified: January 20, 2021
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