SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1000 AM CST Sat Jan 31 2026 Valid 311630Z - 011200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast across the U.S. through tonight. ...Synopsis and Discussion... An upper trough/low over the lower OH and TN Valleys late this morning will pivot eastward over GA/the Carolinas into the western Atlantic through tonight. Further deepening of a surface low over the Gulf Stream east of the NC Outer Banks is forecast through the period, but any associated thunderstorms are expected to remain offshore. A separate upper trough with related cool mid-level temperatures will approach the coastal Pacific Northwest late tonight into early Sunday morning. However, NAM/RAP forecast soundings suggest minimal MUCAPE will be detrimental to lightning-producing convection. ..Gleason/Supinie.. 01/31/2026
