SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0135 PM CST Mon Dec 29 2025 Valid 292000Z - 301200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast in the U.S. through tonight. ...DISCUSSION... No changes are made to the outlook for this issuance. ..Broyles.. 12/29/2025 .PREV DISCUSSION... /ISSUED 1000 AM CST Mon Dec 29 2025/ ...Synopsis and Discussion... An amplified upper trough/low with an intense mid-level jet will continue advancing east-northeastward over Ontario/Quebec and the eastern CONUS today. A related strong surface cold front will also move east-southeastward across the Southeast and Gulf through the period. With negligible instability forecast over land ahead of the front, thunderstorm probabilities still appear less than 10%.
