spc ac 200726
day 3 convective outlook
nws storm prediction center norman ok
0126 am cst sat dec 20 2025
valid 221200z - 231200z
...no thunderstorm areas forecast...
...summary...
severe thunderstorms are not expected on monday.
...discussion...
the large-scale pattern will undergo modest amplification on monday
via additional upper ridging over the south-central conus and
northern mexico. as a surface high continues to transition
east-southeastward along the eastern seaboard/southeast, moderate
low-level moistening will occur north-northeastward across
louisiana/eastern half of texas toward the arklatex. a few
thunderstorms could occur within this warm/moist advection regime,
but it currently appears that upper ridging and related mid-level
capping should considerably limit thunderstorm potential. in the
pacific northwest, a few lightning flashes could occur near coastal
washington, but this potential should remain limited/isolated while
also trending less thermodynamically favorable by late in the day.
..guyer.. 12/20/2025
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note: the next day 3 outlook is scheduled by 1930z