Area Forecast Discussion
Issued by NWS St. Louis, MO

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FXUS63 KLSX 221953
AFDLSX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
253 PM CDT Mon Sep 22 2014

.SHORT TERM: (Through Friday)
Issued at 252 PM CDT Mon Sep 22 2014

High pressure will result in excellent radiational cooling
tonight and have forecast temperatures in the middle to upper 40s.
The upper low now over Wyoming will stretch a trof across the
Plains through midweek with convection staying northwest of the
CWA due to dry and stable atmosphere overhead. The upper level
trof will gradually weaken or even retrograde with time keeping a
dry forecast in tact. A gradual warming trend is expected the
remainder of the work week.

CVKING

.LONG TERM: (Saturday Through Next Monday)
Issued at 252 PM CDT Mon Sep 22 2014

Much of the CONUS will be covered by a very large upper level ridge
by next weekend thanks to the amplification/deepening of an
approaching upper level trof along the west coast late in the work
week. The suite of medium range models and their respecitve
ensembles are in relatively good agreement with this upper level
pattern and therefore confidence is higher than normal in dry and
tranquil conditions and slightly above normal temperatures in the
extended forecast.

CVKING

&&

.AVIATION:  (For the 18z TAFs through 18z Tuesday Afternoon)
Issued at 1239 PM CDT Mon Sep 22 2014

Ridge of high pressure to remain over the region with light and
variable winds and clear skies. Ridge will move off to the east a
bit by midday on Tuesday, so winds to become southerly at KUIN and
KCOU and easterly over metro area.

Specifics for KSTL:
Ridge of high pressure to remain over the region with light and
variable winds and clear skies. Ridge will move off to the east a
bit by 16z Tuesday, so winds to become easterly over metro area.

Byrd

&&

.LSX WATCHES/WARNINGS/ADVISORIES:
MO...NONE.
IL...NONE.
&&

$$

WFO LSX



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