-- Discussion containing changed information from previous version are highlighted. --
998
FXUS62 KGSP 110009
AFDGSP

Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
809 PM EDT Thu Jul 10 2025

.SYNOPSIS...
The active summertime weather will continue thru the end of the week
and into the weekend with scattered to numerous showers and thunder-
storms each day. High temperatures will increase again over the
weekend and early next week as an upper ridge amplifies.

&&

.NEAR TERM /THROUGH FRIDAY/...
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As of 756 PM EDT Thursday: No major changes to this evening`s
forecast.  As a subtle mid-level shortwave drifts across the
Carolinas, the bulk of convection has moved east of I-77 along
with it, giving way to quieter conditions across the Upstate and
much of NC.  The exception is a loosely-organized cluster of cells
currently developing over I-40.  This area is largely untapped as
concerns instability, still boasting some 2000+ J/kg sbCAPE...so
some thunder should continue for a while there.  Its time is
limited, however, given the impending loss of daytime heating.

Otherwise...the CAM consensus translates any remaining clusters of
tstms east of the cwfa by 02z.  Given the moist boundary layer and
weak sw flow, widespread low clouds and locally dense fog is likely.
Not very much changes with respect to the weather pattern for
Friday, still some westerly flow, developing moderate instability
and seasonably rich moisture. Sensible wx will feature diurnally
enhanced tstms becoming numerous again with isolated gusty storms
and locally excessive rainfall possible.
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&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
As of 12:10 PM EDT Thursday: Mid level ridging will remain in place
across the region for the weekend. High temperatures will begin to
heat up again to 2-5 degrees above normal after a brief break from
well above normal readings today and Friday. Heat indices are not
expected to be an issue.

With the abundant moisture in place, we expected shower and
thunderstorm development each afternoon and evening with the highest
pops in the afternoon and evening.

To summarize, it will be pretty typical summer weather.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
As of 12:35 PM EDT Thursday: Mid level ridging will continue into
the early and middle parts of next week with typical summertime
conditions. Highs early int the week should be 3-5 degrees above
normal on Monday, then trending slightly less hot with highs near
normal by mid week. The chance of showers and thunderstorms will
continue each day mainly during the afternoon and evening.

&&

.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
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At KCLT and elsewhere: Showers and thunderstorms continue along the
I-40 corridor, mainly affecting KHKY circa 2345 UTC.  Have removed
TS from the 00z TAFs at all the other terminals, which are expected
to remain rain-free through the overnight hours.  There`s a nonzero
chance that KCLT could see some SHRA in the next 1-2 hours should
the activity over the Foothills propagate southeast, but it`s
unclear whether any of that activity will make it to Charlotte.

Otherwise, expect IFR stratus to develop east of the mountains
tonight, while valley fog will develop over the mountains.
These restrictions should clear up slowly after daybreak, allowing
conditions to return to VFR...and another round of convection
will begin over the mountains Friday afternoon...then translate
eastward into the rest of the terminal forecast area.

Outlook: Typical summertime weather is expected into early next
week, with scattered to numerous thunderstorms mainly in the
afternoon/evening and fog and/or low stratus possible each morning.
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&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.

&&

$$

SYNOPSIS...SCW
NEAR TERM...CSH/MPR
SHORT TERM...SCW
LONG TERM...SCW
AVIATION...MPR