RSS Mesoscale Discussions from Storm Prediction Center
SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1258 AM CST Sun Jan 11 2026
Valid 121200Z - 131200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms are not forecast across the U.S. on Monday and Monday
night.
...DISCUSSION...
At mid-levels, northwesterly flow will be in place from the northern
Rockies southeastward to the Appalachians on Monday, as a shortwave
trough moves southeastward across the mid Mississippi Valley. At the
surface, high pressure will remain over the south-central and
southeastern U.S. keeping dry and cool conditions in place over much
of the nation. This will be unfavorable for thunderstorm development
across the continental U.S. Monday and Monday night.
..Broyles.. 01/11/2026
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SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0229 AM CST Sun Jan 11 2026
Valid 131200Z - 141200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms are not forecast to develop across the U.S. on Tuesday
and Tuesday night.
...DISCUSSION...
A large-scale upper-level trough will dig southeastward into the
east-central U.S. on Tuesday, as an associated surface low deepens
across the Great Lakes. In response, a cold front will move
southeastward across the central U.S. This will reinforce cold and
dry conditions over most of the nation. For this reason,
thunderstorm development is not expected over the continental U.S.
Tuesday and Tuesday night.
..Broyles.. 01/11/2026
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Day 4-8 Outlook
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0346 AM CST Sun Jan 11 2026
Valid 141200Z - 191200Z
...DISCUSSION...
A persistent large-scale upper-level trough is forecast to remain in
the eastern U.S. during the Day 4 to 8 period. This pattern will be
favorable for repeated cold air intrusions into the lower
forty-eight states from mid to late week. Cold and dry surface high
pressure will dominate across much of the nation, making conditions
unfavorable for thunderstorm development.
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