spc ac 171927
day 3 convective outlook
nws storm prediction center norman ok
0127 pm cst wed dec 17 2025
valid 191200z - 201200z
...no severe thunderstorm areas forecast...
...summary...
thunderstorms may occur over the mid atlantic and northeast early
friday, and in the pacific northwest friday afternoon through friday
night.
...discussion...
a deep upper trough will move from the great lakes across the
northeast, with a strong cold front moving across new england and
the mid atlantic during the day. widespread precipitation and clouds
are likely within the pre-frontal warm advection regime, and this
will limit heating and destabilization. sporadic lightning flashes
are possible within the strongly forced shallow convective line
and/or with elevated pre-frontal convective elements.
..jewell.. 12/17/2025
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note: the next day 3 outlook is scheduled by 0830z