SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1108 AM CDT Thu Oct 09 2025 Valid 091630Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not forecast today or tonight. ...Discussion... Upper ridging will be prevalent over the Rockies/Plains, with surface high pressure over the Midwest and much of the East. While severe storms are not expected, thunderstorms will occur across the coastal Southeast, and across the Upper Midwest and portions of the middle/lower Missouri Valley tonight near/ahead of an advancing front. In the West, persistent southwesterly flow between the upper ridging centered over west Texas and cyclone off the Pacific Northwest will continue to advect seasonally high moisture content associated with Tropical Storm Priscilla into the Southwest and Great Basin. Modest boundary-layer heating will contribute to adequate destabilization for lightning within deeper convective updrafts, but overall storm intensity will likely be limited by poor lapse rates. ..Guyer/Jewell.. 10/09/2025
