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
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