SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1044 AM CDT Wed Mar 18 2026 Valid 181630Z - 191200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible today across far south Florida. ...Synopsis... A substantial upper high and attendant ridge is apparent in morning water […]