Area Forecast Discussion
Issued by NWS Columbia, SC

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS62 KCAE 191139
AFDCAE

Area Forecast Discussion
National Weather Service Columbia SC
739 AM EDT Thu Oct 19 2017

.SYNOPSIS...
Fair weather will continue through at least Saturday, with a
warming trend. A cold front will bring a chance of showers and
thunderstorms mainly Monday and Monday night, followed by much
cooler temperatures for mid to late next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
Fair Wx. Upper ridge extending from the W GOMEX north into the
central Plains, with upper troughiness along the eastern
seaboard. Embdded upper disturbance will swing SE through our
region today. Satellite indicates a little high cloudiness
ahead of the short wave, but a very dry atmosphere in place
with precipitable water values a very low 0.3-0.5 inches, will
preclude any precipitation threat. Surface high pressure will
remain centered over the southern Appalachians. A slight warming
trend is expected to continue as the air mass gradually
modifies.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY/...
High pressure over the Mid Atlantic States will move off the East
Coast on Saturday. The return flow off the back side of the surface
high will allow daytime temperatures to warm to above seasonal norms
for late October.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
High pressure holds in for one last day on Sunday for seasonably
warm and dry weather. Models diverge on the specific forecast
solution with a deep upper trough moving into the Eastern U.S. early
next week. Showers and thunderstorms appear likely Monday into
Tuesday morning. Much cooler and drier air pushes in behind this
system on Wednesday.

&&

.AVIATION /12Z THURSDAY THROUGH MONDAY/...
VFR conditions are forecast through the 24 hour TAF period, as
surface high pressure and a dry atmosphere remain over the
region. Localized ground fog near the Savannah river basin at
fog prone AGS possible late tonight/early Friday morning, but
confidence limited as air mass may remain a little too dry.

EXTENDED AVIATION OUTLOOK...No significant impacts to aviation
expected through Saturday except possibility of late night/early
morning localized ground fog at fog prone AGS, and possibly OGB.
Increasing chances of fog/stratus Saturday night/Sunday morning.
Showers along with associated restrictions late Sunday into
Monday, with thunderstorms possible Monday.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.

&&

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.