Current SPC Activity Chart

Current Severe US Wx Maps

SPC Activity Chart
Hazard Wed (01/20) Thu (01/21) Fri (01/22) Sat (01/23) Sun (01/24) Mon (01/25) Tue (01/26) Wed (01/27)
Severe No Severe No Severe No Thunder No Area No Area No Area No Area No Area
Fire Elevated No Critical No Area No Area No Area No Area No Area No Area

Forecast Discussion - Convective Outlook

   SPC AC 201629

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1029 AM CST Wed Jan 20 2021

   Valid 201630Z - 211200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Isolated non-severe thunderstorms are possible across the Lower
   Colorado Valley and southern Arizona through tonight.

   ...Southern Arizona/far southeast California...
   A closed upper low west of the Baja Peninsula will become somewhat
   more progressive as it evolves into an open wave through early
   Thursday morning while approaching the northern Gulf of California.
   Preceding it, 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 later this afternoon through tonight
   across southern Arizona. Severe thunderstorms are unlikely owing to
   meager buoyancy and weak low-level winds.

   ..Guyer.. 01/20/2021

    

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z