SPC AC 200733

   Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0133 AM CST Thu Feb 20 2020

   Valid 221200Z - 231200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Isolated thunderstorms are possible Saturday and Saturday night
   across portions of the southwestern U.S.

   ...Synopsis...

   The upper trough/closed low near the southern CA coast Saturday
   morning will continue progressing east/northeast toward the Four
   Corners through the period. Strong deep-layer southwesterly flow
   ahead of the trough axis will bring increasing moisture northeast
   across much of the southwestern U.S. Showers and isolated
   thunderstorms are expected to be ongoing Saturday morning across
   portions of southern CA/NV and AZ. A weak surface low will develop
   near the Four Corners and a Pacific cold front will migrate east
   across the region, extending south/southwest from central CO into
   southwest NM by Sunday morning. Showers and isolated thunderstorms
   will be possible across much of the southwestern U.S., but severe
   storms are not expected. 

   Elsewhere, strong surface high pressure will persist across the
   Southeast, leading to dry and stable conditions. Thunderstorms are
   not expected east of the Rockies on Saturday.

   ..Leitman.. 02/20/2020

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   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0830Z