SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 1253 PM CST Sun Jan 18 2026 Valid 201200Z - 211200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday or Tuesday night. ...Discussion... Dry/stable conditions for lightning-producing convection should persist across the CONUS through the period. The next in a series of shortwave troughs should progress from the Canadian Rockies towards the Lower MO/Mid-MS Valleys. A weak surface cyclone should similarly track from the northern High Plains to near Lake MI. This will support onshore air mass modification along the TX Gulf Coast. Scant but shallow buoyancy should reach the immediate south TX coast by 12Z Wednesday, with flimsy elevated buoyancy possible northward across east TX. Given poor-quality thermodynamics and only weak large-scale ascent, thunderstorm potential in TX appears negligible. ..Grams.. 01/18/2026
