SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0209 PM CDT Wed Oct 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorm potential appears low on Friday. ...Synopsis... A mid/upper-level low and attendant trough initially near the Pacific Coast are forecast to move eastward Friday. In advance of this system, NHC is forecasting Tropical Cyclone Priscilla to weaken as it moves northward and approaches Baja California. Moisture related to Priscilla will continue to stream northward into parts of the Southwest and Great Basin. A combination of the eastward-moving trough and northward-moving moisture will result in a broad region of at least isolated storm potential from the Southwest/Great Basin into parts of the Northwest and northern Rockies. While moderate to locally strong mid/upper-level flow will overspread much of the region, weak instability is currently expected to limit severe potential. Morning elevated convection related to a mid/upper-level low/trough moving across the Great Lakes may continue early in the period from the lower MO Valley vicinity into the Upper Midwest. Some moisture initially transported northward by the Great Lakes system may advect westward into parts of the central High Plains and support isolated storm development within a post-frontal regime. A gradually amplifying mid/upper-level trough across the Southeast will support occasional storm development from the FL Peninsula to near/just offshore of the Carolina coast. Poor midlevel lapse rates and generally modest buoyancy and deep-layer shear are expected to hamper organized-severe potential. ..Dean.. 10/08/2025
