Area Forecast Discussion
Issued by NWS Paducah, KY

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000
FXUS63 KPAH 082231
AFDPAH

Area Forecast Discussion
National Weather Service Paducah KY
431 PM CST Fri Dec 8 2017

.UPDATE...
Issued at 430 PM CST Fri Dec 8 2017

Updated Aviation discussion for 00Z TAF Issuance.

&&

.SHORT TERM...(Tonight through Sunday night)
Issued at 245 PM CST Fri Dec 8 2017

High amplitude northwesterly flow will continue through the short
term. A clipper system will dive southeast into the Great Lakes
region tonight and early Saturday. Though most of the precip with
this system is still expected to stay north and east of the
forecast area, we could see a narrow band of very light snow sweep
through our far ne counties in sw IN/far nw KY Saturday morning.
Little if any impacts are expected at this time. Any light precip
will be east of the region by afternoon, and skies should clear at
most locations by late in the day. The cold air will continue to
settle into the region Saturday night, with lows back down in the
teens to near 20.

Sunday will bring a gradual moderation in temperatures as winds
turn more southwesterly and increase in speed during the day. No
precipitation is expected.

.LONG TERM...(Monday through Friday)
Issued at 245 PM CST Fri Dec 8 2017

The warm up will continue into Monday with brisk southwesterly
winds ahead of the next clipper type system that will be
barreling southeast through the Midwest and Great Lakes. Highs
will make it back into the 50s during the day at most locations,
and portions of southeast MO may even flirt with 60 degrees.

The aforementioned clipper will drag another moisture starved cold
front through the region Monday night. The main effect of the
front will be to bring another shot of cold Canadian air into the
region Tuesday and and Wednesday. After highs in the mid 30s to
near 40 Tuesday, readings will once again fall down into the teens
to near 20 Tuesday night.

Another shortwave trof may follow later Wednesday or Wednesday
night. This low could track a bit farther s/w than the previous
ones, so will need to monitor trends for a possible increase in
precip chances at that time. Just too far out at this point to
speculate much more. At this point, the signal seems weak on the
GFS and the ECMWF actually buries the system into the sw U.S.

&&

.AVIATION...
Issued at 430 PM CST Fri Dec 8 2017

Clouds may lower to MVFR later tonight/early tomorrow with
northern TAF`s possibly seeing -SN, though restrictions to vsbys
are not expected. Should see improving conditions by pm hours,
though northern sites (KEVV/KOWB) may be slower to clear.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
IL...None.
MO...None.
IN...None.
KY...None.
&&

$$



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