Day 4-8 Outlook Day 4-8 Convective Outlook AMEND 1 NWS Storm Prediction Center Norman OK 0304 PM CDT Fri Mar 13 2026 Valid 161200Z – 211200Z AMENDED TO EXPAND D4/MONDAY THREAT AREAS …DISCUSSION… …Updated discussion for D4… The majority of deterministic and ensemble model guidance agree on a deep midlevel trough and associated cold front […]
SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0242 PM CDT Fri Mar 13 2026 Valid 132000Z – 141200Z …NO SEVERE THUNDERSTORM AREAS FORECAST… …SUMMARY… Strong/gusty winds may occur with low-topped convection across parts of western/central Pennsylvania and vicinity this afternoon, but organized severe thunderstorms are not forecast. […]
SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0232 PM CDT Fri Mar 13 2026 Valid 151200Z – 161200Z …THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM THE LOWER MISSISSIPPI RIVER VALLEY TO THE OHIO VALLEY…. …SUMMARY… A widespread damaging wind event with some tornado threat is […]