Area Forecast Discussion
Issued by NWS St. Louis, MO

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FXUS63 KLSX 101708

1208 PM CDT SAT OCT 10 2015

.SHORT TERM:  (Through Late This Afternoon)
Issued at 335 AM CDT Sat Oct 10 2015

Mid-high clouds associated with weak upper trough currently
moving southeastward across the Midwest will push out of the area
by mid-morning. Low clouds have also been showing a clearing trend
the past few hours. Should be a dry day as an upper ridge begins
to move into the area. Temperatures this afternoon will climb
close to 70 with the return of sunshine and winds turning out of
the southwest as the surface high moves east of the area.


.LONG TERM:  (Tonight through Friday)
Issued at 335 AM CDT Sat Oct 10 2015

The upper ridge will move across the area tonight and Sunday
providing dry weather to the area. Temperatures on Sunday will
climb into the upper 70s and lower 80s as 850mb temperatures climb
into the 10-15C range. Still expect a dry cold frontal passage on
Sunday night as the atmosphere will remain dry through a deep
layer and what ascent there will be will be behind the front
associated with the upper trough moving across the upper Midwest.

Kept with a dry forecast for the rest of next week as both the GFS
and ECMWF are showing dry northwesterly upper flow setting up
behind the passage of the cold front early next week. Both models
do not depict any QPF during this period. 850mb temperatures remain
near 10C which favors surface values near or just above mid
October normals.



.AVIATION:  (For the 18z TAFs through 18z Sunday Afternoon)
Issued at 1156 AM CDT Sat Oct 10 2015

Surface high presure slides to the southeast today allowing a
shift to southerly winds at all sites by 12z Sun. Plenty of dry
air with a few cirrus clouds will be about it. Slight chance of
some morning fog at SUS, CPS, but with the usually "foggy" MET
guidance fog free, will not worry about it.

Specifics for KSTL: VFR conditions with some cirrus clouds will be
the story. Surface wind becomes light southerly overnight and
south to southwest about 10 knots Sunday.





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