Lexington, South Carolina Weather Forecast Discussion

433
FXUS62 KCAE 091751
AFDCAE
Area Forecast Discussion
National Weather Service Columbia SC
151 PM EDT Tue Sep 9 2025
.SYNOPSIS...
High pressure will dominate the weather pattern through the
week with dry conditions and a slow warming trend.
&&
.NEAR TERM /THROUGH TONIGHT/...
Key Message(s):
- Dry and below normal temperatures persist.
Little change in the air mass as high pressure centered over
New England continues to ridge down the East Coast. Forecast
soundings show a very dry air mass in place with PWATs around a
half inch. Temperatures are rising through the upper 70s under
mostly sunny skies. Some passing thin high cirrus clouds may
move across the region this evening into overnight, favoring the
eastern half of the forecast area. Another cool night expected
with strong radiational cooling with lows expected in the 50s.
&&
.SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/...
Key message(s):
- Surface ridging and calm weather expected throughout the
  middle of the week.
Strong high pressure remains in place across the NE CONUS,
extending surface ridging, northeasterly flow, and dry advection
down the lee side of the of the Appalachians. While some weak
troughing will remain draped across the TN Valley and
Appalachians during this period, PWAT`s well below average and
surface dews in the 50`s will prevent any appreciable cloud
cover let alone precip chances. Temps will steadily rise both
Wednesday and Thursday, back near average, as persistent clear
skies and solar insolation moderates the airmass a bit.
&&
.LONG TERM /FRIDAY THROUGH TUESDAY/...
Key message(s):
- Surface ridging and calm weather expected throughout the middle
  of the week.
Strong high pressure remains in place across the NE CONUS,
extending surface ridging, northeasterly flow, and dry advection
down the lee side of the of the Appalachians. While some weak
troughing will remain draped across the TN Valley and
Appalachians during this period, PWAT`s well below average and
surface dews in the 50`s will prevent any appreciable cloud
cover let alone precip chances. Temps will steadily rise both
Wednesday and Thursday, back near average, as persistent clear
skies and solar insolation moderates the airmass a bit.
&&
.AVIATION /18Z TUESDAY THROUGH SUNDAY/...
High confidence in VFR conditions through the 24hr forecast
period.
High pressure continues to dominate through the period with a
dry air mass in place. The only impacts to aviation may be some
gusty winds through the afternoon and some possible high clouds
but no restrictions expected. Winds diminish overnight before
picking back up to around 8 to 10 knots by 14z-15z Wednesday.
EXTENDED AVIATION OUTLOOK...A dry air mass will be over
the region this week and no significant aviation restrictions
expected.
&&
.CAE WATCHES/WARNINGS/ADVISORIES...
SC...None.
GA...None.
&&
$$

NWS CAE Office Area Forecast Discussion