Area Forecast Discussion
Issued by NWS Columbia, SC
FXUS62 KCAE 170333
Area Forecast Discussion
National Weather Service Columbia SC
1033 PM EST Mon Jan 16 2017
Above average temperatures will persist through the week. High
pressure along the Mid-Atlantic Coast will move east into the
Atlantic overnight as a cold front approaches from the west. The
cold front and associated moisture will be in the area Tuesday
night and Wednesday. Unsettled weather will close out the week
into the weekend.
.NEAR TERM /THROUGH TUESDAY/...
Surface high pressure centered along the Mid-Atlantic Coast will
continue to promote moist east/southeasterly flow into the area
tonight. Satellite and surface observations show low clouds
over much of the area this evening. Fog is also expected to
develop tonight and continue through the sunrise hours Tuesday
morning. Some stations are already reporting reduced
visibilities in fog. Cloud cover should keep temperatures from
changing drastically overnight. Forecasted low temperatures in
the upper 40s to lower 50s.
.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/...
High pressure aloft over the Eastern Gulf of Mexico reasserts itself
over The Midlands and CSRA during the middle of the week for
temperatures 15 to 20 degrees above climatology. We can expect
areas of late night and early morning fog and a chance of
showers in the northern Midlands Tuesday Night near a stationary
.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
A very active southern branch of jet stream will push two systems
into the Southeast U.S. late this week into early next week. The
first system arrives Thursday Night into Friday with the second
system forecast for Sunday into Monday. Expect unsettled weather
and for the most part above normal temperatures during this time
.AVIATION /04Z TUESDAY THROUGH SATURDAY/...
High confidence for cig/vsby restrictions through late morning
A moist easterly flow coupled with abundant low level moisture
trapped beneath an inversion will hold IFR/LIFR conditions
across the TAF sites through late Tuesday morning. LIFR
conditions observed across the Midlands TAF sites with IFR cigs
at AGS/DNL at 03Z. All models indicate LIFR conditions at all
TAF sites 08Z-15Z. Should see improving conditions after 16Z
with VFR conditions returning during the afternoon with mixing
as winds become southwest around 10 knots.
EXTENDED AVIATION OUTLOOK...Late night/early morning fog
possible through Saturday. Showers and associated restrictions
possible Thursday through Saturday.