MRX afternoon discussion:
.LONG TERM...
(Sunday night through next Saturday)
Issued at 324 PM EST Sat Jan 4 2025
Key Messages:
1. Cold.
2. Secondary shot of wintry precip on Monday with a brisk frontal
passage.
3. Uneventful mid-week.
4. Another possibility for wintry precip next Friday night and
Saturday.
Discussion:
The cold upper level low, lingering behind the currently developing
big winter weather storm, will traverse the Ohio/Tennessee Valleys
on Monday, and its cold core will bring a switch over from rain back
to wintry precip on Monday before it all lifts into the Mid Atlantic
region and finally leaves us alone.
Zonal flow above the cold air will keep things generally quiet
Tuesday through Thursday, but temperatures through the week will run
roughly 5 to 10 degrees below normal.
Thus, when the next precip-maker approaches our area from the
western Gulf late in the week, we might see another round of wintry
precip, beginning especially Friday night and ending Saturday. This
will bear monitoring, as model temperatures look to be somewhat
conducive for Valley wintry precip, but temperature forecasts tend
to moderate a bit as such events draw nigh. The flow aloft will be
out of the southwest, indicating warm nosing aloft, if not also at
the surface.
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