SPC 1300Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0653 AM CDT Tue Mar 11 2025 Valid 111300Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are expected across far southern California and into Arizona today into tonight. Severe storms are not expected. ...Discussion... A potent mid to upper-level low west of southern CA will move east and evolve into an open trough and reach the AZ-NM/Sonora-Chihuahua border vicinity by early Wednesday morning. Isolated to widely scattered showers associated with the cold core will spread east during the day from southern CA into the lower CO Valley and southwest AZ, and later into the Sonoran Desert/Mogollon Rim tonight. Deeper convection near and east of the mid-level cold pocket will probably result in occasional lightning flashes. Elsewhere, quiescent conditions for thunderstorm activity will prevail. ..Smith/Dean.. 03/11/2025