SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0633 PM CST Sat Dec 20 2025 Valid 210100Z - 211200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few lightning flashes may occur late tonight over southern Louisiana; however, this activity will be very sparse. ...01z Update... Weak surface front is expected to settle into northern LA, arcing southwest into the Hill Country of central TX by the end of the period. Favorable low-level trajectories will continue across the western Gulf basin into southern LA tonight where 60s surface dew points are expected to hold. However, large-scale forcing is not expected to be particularly notable and a fairly strong cap is currently noted around 2km on the 00z LCH sounding. Latest model guidance suggests this capping will likely persist, but possibly weaken toward 12z. If so, a few flashes of lightning may accompany weak convection across southern LA. ..Darrow.. 12/21/2025
