spc ac 210635
day 2 convective outlook
nws storm prediction center norman ok
1235 am cst sun dec 21 2025
valid 221200z - 231200z
...no severe thunderstorm areas forecast...
...summary...
severe thunderstorms are not forecast on monday.
...synopsis...
model guidance continues to show an upper-level ridge and quiescent
conditions influencing weather across much of lower 48 states on
monday. a mid-level shortwave trough will move from the eastern
pacific into wa and british columbia during the period.
increasingly cool mid-level temperatures will support pockets of
scant instability near the pacific northwest coast. widely
scattered showers and perhaps a few low-topped thunderstorms may
develop along the immediate coast. farther southeast along the
lower coast of tx within a seasonably moist airmass, weak convection
may develop but negligible forcing will likely limit convective
potential with this activity.
..smith.. 12/21/2025
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note: the next day 2 outlook is scheduled by 1730z